91330506156044 has 12 divisors (see below), whose sum is σ = 159907862856168. Its totient is φ = 45642545340000.

The previous prime is 91330506155971. The next prime is 91330506156053. The reversal of 91330506156044 is 44065160503319.

It is a super-2 number, since 2×91330506156044² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 91330506156044.

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, 5676925457 + ... + 5676941544.

It is an arithmetic number, because the mean of its divisors is an integer number (13325655238014).

Almost surely, 2^{91330506156044} is an apocalyptic number.

It is an amenable number.

91330506156044 is a deficient number, since it is larger than the sum of its proper divisors (68577356700124).

91330506156044 is a wasteful number, since it uses less digits than its factorization.

91330506156044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11353869016 (or 11353869014 counting only the distinct ones).

The product of its (nonzero) digits is 1166400, while the sum is 47.

The spelling of 91330506156044 in words is "ninety-one trillion, three hundred thirty billion, five hundred six million, one hundred fifty-six thousand, forty-four".