90015697076 has 6 divisors (see below), whose sum is σ = 157527469890. Its totient is φ = 45007848536.

The previous prime is 90015697063. The next prime is 90015697081. The reversal of 90015697076 is 67079651009.

It can be written as a sum of positive squares in only one way, i.e., 58214108176 + 31801588900 = 241276^2 + 178330^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11251962131 + ... + 11251962138.

It is an arithmetic number, because the mean of its divisors is an integer number (26254578315).

Almost surely, 2^90015697076 is an apocalyptic number.

It is an amenable number.

90015697076 is a deficient number, since it is larger than the sum of its proper divisors (67511772814).

90015697076 is a wasteful number, since it uses less digits than its factorization.

90015697076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22503924273 (or 22503924271 counting only the distinct ones).

The product of its (nonzero) digits is 714420, while the sum is 50.

The spelling of 90015697076 in words is "ninety billion, fifteen million, six hundred ninety-seven thousand, seventy-six".