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2164858968095 = 52412113850243
BaseRepresentation
bin11111100000001011101…
…001100101100000011111
321122221212202002011010022
4133200023221211200133
5240432112343434340
64334304504502355
7312256136420015
oct37401351454037
97587782064108
102164858968095
117651254a465a
122ab692a7a9bb
131291b7380935
1476acb8328b5
153b4a63143b5
hex1f80ba6581f

2164858968095 has 16 divisors (see below), whose sum is σ = 2609847764832. Its totient is φ = 1723882659840.

The previous prime is 2164858967927. The next prime is 2164858968101. The reversal of 2164858968095 is 5908698584612.

It is not a de Polignac number, because 2164858968095 - 210 = 2164858967071 is a prime.

It is a super-2 number, since 2×21648589680952 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2121044 + ... + 2971286.

It is an arithmetic number, because the mean of its divisors is an integer number (163115485302).

Almost surely, 22164858968095 is an apocalyptic number.

2164858968095 is a deficient number, since it is larger than the sum of its proper divisors (444988796737).

2164858968095 is a wasteful number, since it uses less digits than its factorization.

2164858968095 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 852602.

The product of its (nonzero) digits is 298598400, while the sum is 71.

The spelling of 2164858968095 in words is "two trillion, one hundred sixty-four billion, eight hundred fifty-eight million, nine hundred sixty-eight thousand, ninety-five".

Divisors: 1 5 241 1205 2113 10565 509233 850243 2546165 4251215 204908563 1024542815 1796563459 8982817295 432971793619 2164858968095