91656335102 has 32 divisors (see below), whose sum is σ = 144027942912. Its totient is φ = 43705103904.

The previous prime is 91656335077. The next prime is 91656335107. The reversal of 91656335102 is 20153365619.

It is a self number, because there is not a number n which added to its sum of digits gives 91656335102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91656335107) 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, 721283 + ... + 838785.

It is an arithmetic number, because the mean of its divisors is an integer number (4500873216).

Almost surely, 2^91656335102 is an apocalyptic number.

91656335102 is a deficient number, since it is larger than the sum of its proper divisors (52371607810).

91656335102 is a wasteful number, since it uses less digits than its factorization.

91656335102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117752.

The product of its (nonzero) digits is 145800, while the sum is 41.

The spelling of 91656335102 in words is "ninety-one billion, six hundred fifty-six million, three hundred thirty-five thousand, one hundred two".