90983656155 has 32 divisors (see below), whose sum is σ = 166430006784. Its totient is φ = 41577555456.

The previous prime is 90983656147. The next prime is 90983656157. The reversal of 90983656155 is 55165638909.

It is a happy number.

It is not a de Polignac number, because 90983656155 - 2³ = 90983656147 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 90983656095 and 90983656104.

It is not an unprimeable number, because it can be changed into a prime (90983656157) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 139747 + ... + 448883.

It is an arithmetic number, because the mean of its divisors is an integer number (5200937712).

Almost surely, 2^90983656155 is an apocalyptic number.

90983656155 is a deficient number, since it is larger than the sum of its proper divisors (75446350629).

90983656155 is a wasteful number, since it uses less digits than its factorization.

90983656155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311955.

The product of its (nonzero) digits is 8748000, while the sum is 57.

The spelling of 90983656155 in words is "ninety billion, nine hundred eighty-three million, six hundred fifty-six thousand, one hundred fifty-five".