245355131555555 has 64 divisors (see below), whose sum is σ = 346841163841536. Its totient is φ = 163119276672000.

The previous prime is 245355131555423. The next prime is 245355131555641. The reversal of 245355131555555 is 555555131553542.

It is not a de Polignac number, because 245355131555555 - 2²⁰ = 245355130506979 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 245355131555494 and 245355131555503.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 277206260 + ... + 278089950.

It is an arithmetic number, because the mean of its divisors is an integer number (5419393185024).

Almost surely, 2^{245355131555555} is an apocalyptic number.

245355131555555 is a deficient number, since it is larger than the sum of its proper divisors (101486032285981).

245355131555555 is a wasteful number, since it uses less digits than its factorization.

245355131555555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 884948.

The product of its digits is 140625000, while the sum is 59.

The spelling of 245355131555555 in words is "two hundred forty-five trillion, three hundred fifty-five billion, one hundred thirty-one million, five hundred fifty-five thousand, five hundred fifty-five".