245516202556155 has 64 divisors (see below), whose sum is σ = 440922138071040. Its totient is φ = 129608057232000.

The previous prime is 245516202556153. The next prime is 245516202556181. The reversal of 245516202556155 is 551655202615542.

245516202556155 is a `hidden beast` number, since 2 + 4 + 5 + 5 + 1 + 6 + 2 + 0 + 25 + 561 + 55 = 666.

It is not a de Polignac number, because 245516202556155 - 2¹ = 245516202556153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (245516202556153) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 44618190 + ... + 49817820.

It is an arithmetic number, because the mean of its divisors is an integer number (6889408407360).

Almost surely, 2^{245516202556155} is an apocalyptic number.

245516202556155 is a deficient number, since it is larger than the sum of its proper divisors (195405935514885).

245516202556155 is a wasteful number, since it uses less digits than its factorization.

245516202556155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5203209 (or 5203203 counting only the distinct ones).

The product of its (nonzero) digits is 18000000, while the sum is 54.

The spelling of 245516202556155 in words is "two hundred forty-five trillion, five hundred sixteen billion, two hundred two million, five hundred fifty-six thousand, one hundred fifty-five".