45161545644 has 36 divisors (see below), whose sum is σ = 114180282216. Its totient is φ = 15050956608.

The previous prime is 45161545589. The next prime is 45161545651. The reversal of 45161545644 is 44654516154.

45161545644 is a `hidden beast` number, since 4 + 5 + 1 + 61 + 545 + 6 + 44 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 45161545644.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 73792 + ... + 309464.

It is an arithmetic number, because the mean of its divisors is an integer number (3171674506).

Almost surely, 2^45161545644 is an apocalyptic number.

It is an amenable number.

45161545644 is an abundant number, since it is smaller than the sum of its proper divisors (69018736572).

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

45161545644 is a wasteful number, since it uses less digits than its factorization.

45161545644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241006 (or 241001 counting only the distinct ones).

The product of its digits is 1152000, while the sum is 45.

The spelling of 45161545644 in words is "forty-five billion, one hundred sixty-one million, five hundred forty-five thousand, six hundred forty-four".