91063107320 has 32 divisors (see below), whose sum is σ = 205283801520. Its totient is φ = 36355587840.

The previous prime is 91063107281. The next prime is 91063107389. The reversal of 91063107320 is 2370136019.

It is a happy number.

It is a congruent number.

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, 2155541 + ... + 2197380.

Almost surely, 2^91063107320 is an apocalyptic number.

It is an amenable number.

91063107320 is an abundant number, since it is smaller than the sum of its proper divisors (114220694200).

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

91063107320 is a wasteful number, since it uses less digits than its factorization.

91063107320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4353455 (or 4353451 counting only the distinct ones).

The product of its (nonzero) digits is 6804, while the sum is 32.

The spelling of 91063107320 in words is "ninety-one billion, sixty-three million, one hundred seven thousand, three hundred twenty".