90816605552 has 20 divisors (see below), whose sum is σ = 182024662920. Its totient is φ = 43842499008.

The previous prime is 90816605513. The next prime is 90816605647. The reversal of 90816605552 is 25550661809.

It is a junction number, because it is equal to n+sod(n) for n = 90816605497 and 90816605506.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97862258 + ... + 97863185.

It is an arithmetic number, because the mean of its divisors is an integer number (9101233146).

Almost surely, 2^90816605552 is an apocalyptic number.

It is an amenable number.

90816605552 is an abundant number, since it is smaller than the sum of its proper divisors (91208057368).

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

90816605552 is a wasteful number, since it uses less digits than its factorization.

90816605552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195725480 (or 195725474 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 47.

The spelling of 90816605552 in words is "ninety billion, eight hundred sixteen million, six hundred five thousand, five hundred fifty-two".