85616940957 has 8 divisors (see below), whose sum is σ = 114159734976. Its totient is φ = 57076053792.

The previous prime is 85616940923. The next prime is 85616940971. The reversal of 85616940957 is 75904961658.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 85616940957 - 2¹² = 85616936861 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 85616940957.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85616940977) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 368433 + ... + 554054.

It is an arithmetic number, because the mean of its divisors is an integer number (14269966872).

Almost surely, 2^85616940957 is an apocalyptic number.

It is an amenable number.

85616940957 is a deficient number, since it is larger than the sum of its proper divisors (28542794019).

85616940957 is a wasteful number, since it uses less digits than its factorization.

85616940957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 953427.

The product of its (nonzero) digits is 16329600, while the sum is 60.

The spelling of 85616940957 in words is "eighty-five billion, six hundred sixteen million, nine hundred forty thousand, nine hundred fifty-seven".