99061064457656 has 16 divisors (see below), whose sum is σ = 212273709552240. Its totient is φ = 42454741910400.

The previous prime is 99061064457557. The next prime is 99061064457659. The reversal of 99061064457656 is 65675446016099.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99061064457659) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 884473789745 + ... + 884473789856.

It is an arithmetic number, because the mean of its divisors is an integer number (13267106847015).

Almost surely, 2^{99061064457656} is an apocalyptic number.

It is an amenable number.

99061064457656 is an abundant number, since it is smaller than the sum of its proper divisors (113212645094584).

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

99061064457656 is a wasteful number, since it uses less digits than its factorization.

99061064457656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1768947579614 (or 1768947579610 counting only the distinct ones).

The product of its (nonzero) digits is 293932800, while the sum is 68.

The spelling of 99061064457656 in words is "ninety-nine trillion, sixty-one billion, sixty-four million, four hundred fifty-seven thousand, six hundred fifty-six".