85651600155 has 16 divisors (see below), whose sum is σ = 149500975104. Its totient is φ = 41528048480.

The previous prime is 85651600129. The next prime is 85651600159. The reversal of 85651600155 is 55100615658.

It is not a de Polignac number, because 85651600155 - 2⁸ = 85651599899 is a prime.

It is a super-2 number, since 2×85651600155² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (85651600159) 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, 259550139 + ... + 259550468.

It is an arithmetic number, because the mean of its divisors is an integer number (9343810944).

Almost surely, 2^85651600155 is an apocalyptic number.

85651600155 is a deficient number, since it is larger than the sum of its proper divisors (63849374949).

85651600155 is a wasteful number, since it uses less digits than its factorization.

85651600155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 519100626.

The product of its (nonzero) digits is 180000, while the sum is 42.

The spelling of 85651600155 in words is "eighty-five billion, six hundred fifty-one million, six hundred thousand, one hundred fifty-five".