45061021161 has 24 divisors (see below), whose sum is σ = 70107328200. Its totient is φ = 27724951296.

The previous prime is 45061021147. The next prime is 45061021171. The reversal of 45061021161 is 16112016054.

45061021161 is a `hidden beast` number, since 45 + 0 + 610 + 2 + 1 + 1 + 6 + 1 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 6121497600 + 38939523561 = 78240^2 + 197331^2 .

It is not a de Polignac number, because 45061021161 - 2²⁷ = 44926803433 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (45061021111) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 696415 + ... + 758363.

It is an arithmetic number, because the mean of its divisors is an integer number (2921138675).

Almost surely, 2^45061021161 is an apocalyptic number.

It is an amenable number.

45061021161 is a deficient number, since it is larger than the sum of its proper divisors (25046307039).

45061021161 is a wasteful number, since it uses less digits than its factorization.

45061021161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68185 (or 68182 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The spelling of 45061021161 in words is "forty-five billion, sixty-one million, twenty-one thousand, one hundred sixty-one".