85642766355 has 16 divisors (see below), whose sum is σ = 137785493664. Its totient is φ = 45423786240.

The previous prime is 85642766353. The next prime is 85642766369. The reversal of 85642766355 is 55366724658.

It is not a de Polignac number, because 85642766355 - 2¹ = 85642766353 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 85642766295 and 85642766304.

It is not an unprimeable number, because it can be changed into a prime (85642766353) 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, 15769434 + ... + 15774863.

It is an arithmetic number, because the mean of its divisors is an integer number (8611593354).

Almost surely, 2^85642766355 is an apocalyptic number.

85642766355 is a deficient number, since it is larger than the sum of its proper divisors (52142727309).

85642766355 is a wasteful number, since it uses less digits than its factorization.

85642766355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31544486.

The product of its digits is 36288000, while the sum is 57.

The spelling of 85642766355 in words is "eighty-five billion, six hundred forty-two million, seven hundred sixty-six thousand, three hundred fifty-five".