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16231715623871 = 1119190979406661
BaseRepresentation
bin1110110000110011110110…
…1001001101001110111111
32010110201220011121010002222
43230030331221031032333
54111420023144430441
654304425222035555
73263463021225266
oct354147551151677
963421804533088
1016231715623871
115198917345270
1219a1994878bbb
1390984b459417
144018952395dd
151d23568b6d4b
hexec33da4d3bf

16231715623871 has 16 divisors (see below), whose sum is σ = 18639434102400. Its totient is φ = 13979360426400.

The previous prime is 16231715623867. The next prime is 16231715623901. The reversal of 16231715623871 is 17832651713261.

It is a cyclic number.

It is not a de Polignac number, because 16231715623871 - 22 = 16231715623867 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16231715623841) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39711281 + ... + 40117941.

It is an arithmetic number, because the mean of its divisors is an integer number (1164964631400).

Almost surely, 216231715623871 is an apocalyptic number.

16231715623871 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

16231715623871 is a deficient number, since it is larger than the sum of its proper divisors (2407718478529).

16231715623871 is a wasteful number, since it uses less digits than its factorization.

16231715623871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 597670.

The product of its digits is 2540160, while the sum is 53.

The spelling of 16231715623871 in words is "sixteen trillion, two hundred thirty-one billion, seven hundred fifteen million, six hundred twenty-three thousand, eight hundred seventy-one".

Divisors: 1 11 19 209 190979 406661 2100769 3628601 4473271 7726559 39914611 84992149 77663711119 854300822309 1475610511261 16231715623871