90910090955553 has 16 divisors (see below), whose sum is σ = 123714320302080. Its totient is φ = 59368375933776.

The previous prime is 90910090955549. The next prime is 90910090955609. The reversal of 90910090955553 is 35555909001909.

It is not a de Polignac number, because 90910090955553 - 2² = 90910090955549 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (90910090955513) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1510154475 + ... + 1510214672.

It is an arithmetic number, because the mean of its divisors is an integer number (7732145018880).

Almost surely, 2^{90910090955553} is an apocalyptic number.

It is an amenable number.

90910090955553 is a deficient number, since it is larger than the sum of its proper divisors (32804229346527).

90910090955553 is a wasteful number, since it uses less digits than its factorization.

90910090955553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3020369356.

The product of its (nonzero) digits is 12301875, while the sum is 60.

The spelling of 90910090955553 in words is "ninety trillion, nine hundred ten billion, ninety million, nine hundred fifty-five thousand, five hundred fifty-three".