100853565081 has 16 divisors (see below), whose sum is σ = 138028665600. Its totient is φ = 65478388688.

The previous prime is 100853565047. The next prime is 100853565083. The reversal of 100853565081 is 180565358001.

It is a cyclic number.

It is not a de Polignac number, because 100853565081 - 2¹⁹ = 100853040793 is a prime.

It is a super-2 number, since 2×100853565081² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (100853565083) 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, 2643651 + ... + 2681528.

It is an arithmetic number, because the mean of its divisors is an integer number (8626791600).

Almost surely, 2^100853565081 is an apocalyptic number.

It is an amenable number.

100853565081 is a deficient number, since it is larger than the sum of its proper divisors (37175100519).

100853565081 is a wasteful number, since it uses less digits than its factorization.

100853565081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5325348.

The product of its (nonzero) digits is 144000, while the sum is 42.

The spelling of 100853565081 in words is "one hundred billion, eight hundred fifty-three million, five hundred sixty-five thousand, eighty-one".