90042645996 has 72 divisors (see below), whose sum is σ = 237582369024. Its totient is φ = 28699751520.

The previous prime is 90042645971. The next prime is 90042646061. The reversal of 90042645996 is 69954624009.

It is a happy number.

90042645996 is a `hidden beast` number, since 9 + 0 + 0 + 42 + 6 + 4 + 599 + 6 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2741745 + ... + 2774391.

Almost surely, 2^90042645996 is an apocalyptic number.

It is an amenable number.

90042645996 is an abundant number, since it is smaller than the sum of its proper divisors (147539723028).

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

90042645996 is a wasteful number, since it uses less digits than its factorization.

90042645996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36011 (or 36006 counting only the distinct ones).

The product of its (nonzero) digits is 4199040, while the sum is 54.

The spelling of 90042645996 in words is "ninety billion, forty-two million, six hundred forty-five thousand, nine hundred ninety-six".