91452170168 has 8 divisors (see below), whose sum is σ = 171472819080. Its totient is φ = 45726085080.

The previous prime is 91452170129. The next prime is 91452170171. The reversal of 91452170168 is 86107125419.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5715760628 + ... + 5715760643.

It is an arithmetic number, because the mean of its divisors is an integer number (21434102385).

Almost surely, 2^91452170168 is an apocalyptic number.

It is an amenable number.

91452170168 is a deficient number, since it is larger than the sum of its proper divisors (80020648912).

91452170168 is a wasteful number, since it uses less digits than its factorization.

91452170168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11431521277 (or 11431521273 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 44.

The spelling of 91452170168 in words is "ninety-one billion, four hundred fifty-two million, one hundred seventy thousand, one hundred sixty-eight".