91064180662 has 32 divisors (see below), whose sum is σ = 168508698624. Its totient is φ = 35941773600.

The previous prime is 91064180629. The next prime is 91064180689. The reversal of 91064180662 is 26608146019.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 502014 + ... + 658897.

It is an arithmetic number, because the mean of its divisors is an integer number (5265896832).

Almost surely, 2^91064180662 is an apocalyptic number.

91064180662 is a deficient number, since it is larger than the sum of its proper divisors (77444517962).

91064180662 is a wasteful number, since it uses less digits than its factorization.

91064180662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1161364.

The product of its (nonzero) digits is 124416, while the sum is 43.

The spelling of 91064180662 in words is "ninety-one billion, sixty-four million, one hundred eighty thousand, six hundred sixty-two".