85959167021 has 8 divisors (see below), whose sum is σ = 105795897984. Its totient is φ = 68011648560.

The previous prime is 85959166981. The next prime is 85959167027. The reversal of 85959167021 is 12076195958.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 85959167021 - 2¹⁰ = 85959165997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85959167027) 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, 472303025 + ... + 472303206.

It is an arithmetic number, because the mean of its divisors is an integer number (13224487248).

Almost surely, 2^85959167021 is an apocalyptic number.

It is an amenable number.

85959167021 is a deficient number, since it is larger than the sum of its proper divisors (19836730963).

85959167021 is a wasteful number, since it uses less digits than its factorization.

85959167021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 944606251.

The product of its (nonzero) digits is 1360800, while the sum is 53.

The spelling of 85959167021 in words is "eighty-five billion, nine hundred fifty-nine million, one hundred sixty-seven thousand, twenty-one".