45120505046557 has 16 divisors (see below), whose sum is σ = 48320063035200. Its totient is φ = 42004020216960.

The previous prime is 45120505046531. The next prime is 45120505046587. The reversal of 45120505046557 is 75564050502154.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45120505046557 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 45120505046557.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45120505046587) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5508258 + ... + 10980979.

It is an arithmetic number, because the mean of its divisors is an integer number (3020003939700).

Almost surely, 2^{45120505046557} is an apocalyptic number.

It is an amenable number.

45120505046557 is a deficient number, since it is larger than the sum of its proper divisors (3199557988643).

45120505046557 is a wasteful number, since it uses less digits than its factorization.

45120505046557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16491756.

The product of its (nonzero) digits is 4200000, while the sum is 49.

The spelling of 45120505046557 in words is "forty-five trillion, one hundred twenty billion, five hundred five million, forty-six thousand, five hundred fifty-seven".