85669632580 has 48 divisors (see below), whose sum is σ = 209981753856. Its totient is φ = 28747497600.

The previous prime is 85669632563. The next prime is 85669632661. The reversal of 85669632580 is 8523696658.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6503271 + ... + 6516430.

It is an arithmetic number, because the mean of its divisors is an integer number (4374619872).

Almost surely, 2^85669632580 is an apocalyptic number.

It is an amenable number.

85669632580 is an abundant number, since it is smaller than the sum of its proper divisors (124312121276).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85669632580 is a wasteful number, since it uses less digits than its factorization.

85669632580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13019764 (or 13019762 counting only the distinct ones).

The product of its (nonzero) digits is 18662400, while the sum is 58.

The spelling of 85669632580 in words is "eighty-five billion, six hundred sixty-nine million, six hundred thirty-two thousand, five hundred eighty".