91050954556 has 12 divisors (see below), whose sum is σ = 159357518992. Its totient is φ = 45520234848.

The previous prime is 91050954509. The next prime is 91050954569. The reversal of 91050954556 is 65545905019.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1271400 + ... + 1341103.

Almost surely, 2^91050954556 is an apocalyptic number.

It is an amenable number.

91050954556 is a deficient number, since it is larger than the sum of its proper divisors (68306564436).

91050954556 is a wasteful number, since it uses less digits than its factorization.

91050954556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2621220 (or 2621218 counting only the distinct ones).

The product of its (nonzero) digits is 1215000, while the sum is 49.

The spelling of 91050954556 in words is "ninety-one billion, fifty million, nine hundred fifty-four thousand, five hundred fifty-six".