85669632572 has 24 divisors (see below), whose sum is σ = 151126542336. Its totient is φ = 42490729008.

The previous prime is 85669632563. The next prime is 85669632661. The reversal of 85669632572 is 27523696658.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4971323 + ... + 4988525.

It is an arithmetic number, because the mean of its divisors is an integer number (6296939264).

Almost surely, 2^85669632572 is an apocalyptic number.

It is an amenable number.

85669632572 is a deficient number, since it is larger than the sum of its proper divisors (65456909764).

85669632572 is a wasteful number, since it uses less digits than its factorization.

85669632572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27137 (or 27135 counting only the distinct ones).

The product of its digits is 32659200, while the sum is 59.

The spelling of 85669632572 in words is "eighty-five billion, six hundred sixty-nine million, six hundred thirty-two thousand, five hundred seventy-two".