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10664015893 is a prime number
BaseRepresentation
bin10011110111001111…
…11111100000010101
31000112012020010200121
421323213333200111
5133314442002033
64522102511541
7525156432226
oct117347774025
930465203617
1010664015893
114582616a83
1220974355b1
13100c43ab9b
1473241124d
1542632362d
hex27b9ff815

10664015893 has 2 divisors, whose sum is σ = 10664015894. Its totient is φ = 10664015892.

The previous prime is 10664015863. The next prime is 10664015927. The reversal of 10664015893 is 39851046601.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6809220324 + 3854795569 = 82518^2 + 62087^2 .

It is a cyclic number.

It is not a de Polignac number, because 10664015893 - 217 = 10663884821 is a prime.

It is a super-2 number, since 2×106640158932 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10664015863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5332007946 + 5332007947.

It is an arithmetic number, because the mean of its divisors is an integer number (5332007947).

Almost surely, 210664015893 is an apocalyptic number.

It is an amenable number.

10664015893 is a deficient number, since it is larger than the sum of its proper divisors (1).

10664015893 is an equidigital number, since it uses as much as digits as its factorization.

10664015893 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 155520, while the sum is 43.

The spelling of 10664015893 in words is "ten billion, six hundred sixty-four million, fifteen thousand, eight hundred ninety-three".