90806042115556 has 24 divisors (see below), whose sum is σ = 162644711139680. Its totient is φ = 44336625201792.

The previous prime is 90806042115511. The next prime is 90806042115571. The reversal of 90806042115556 is 65551124060809.

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, 61841541 + ... + 63292876.

Almost surely, 2^{90806042115556} is an apocalyptic number.

It is an amenable number.

90806042115556 is a deficient number, since it is larger than the sum of its proper divisors (71838669024124).

90806042115556 is a wasteful number, since it uses less digits than its factorization.

90806042115556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125138683 (or 125138681 counting only the distinct ones).

The product of its (nonzero) digits is 2592000, while the sum is 52.

The spelling of 90806042115556 in words is "ninety trillion, eight hundred six billion, forty-two million, one hundred fifteen thousand, five hundred fifty-six".