91745152700161 has 9 divisors (see below), whose sum is σ = 92313030425889. Its totient is φ = 91180747306836.

The previous prime is 91745152700111. The next prime is 91745152700189. The reversal of 91745152700161 is 16100725154719.

The square root of 91745152700161 is 9578369.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 91745152700161 - 2²⁹ = 91744615829249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91745152700101) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1561244766 + ... + 1561303528.

Almost surely, 2^{91745152700161} is an apocalyptic number.

91745152700161 is the 9578369-th square number.

91745152700161 is the 4789185-th centered octagonal number.

It is an amenable number.

91745152700161 is a deficient number, since it is larger than the sum of its proper divisors (567877725728).

91745152700161 is an frugal number, since it uses more digits than its factorization.

91745152700161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117852 (or 58926 counting only the distinct ones).

The product of its (nonzero) digits is 529200, while the sum is 49.

The spelling of 91745152700161 in words is "ninety-one trillion, seven hundred forty-five billion, one hundred fifty-two million, seven hundred thousand, one hundred sixty-one".