245615632563 has 16 divisors (see below), whose sum is σ = 374288094720. Its totient is φ = 140345544576.

The previous prime is 245615632459. The next prime is 245615632643. The reversal of 245615632563 is 365236516542.

It is a happy number.

It is not a de Polignac number, because 245615632563 - 2¹⁴ = 245615616179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (245615632663) 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, 245818 + ... + 742736.

It is an arithmetic number, because the mean of its divisors is an integer number (23393005920).

Almost surely, 2^245615632563 is an apocalyptic number.

245615632563 is a deficient number, since it is larger than the sum of its proper divisors (128672462157).

245615632563 is a wasteful number, since it uses less digits than its factorization.

245615632563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 520466.

The product of its digits is 3888000, while the sum is 48.

The spelling of 245615632563 in words is "two hundred forty-five billion, six hundred fifteen million, six hundred thirty-two thousand, five hundred sixty-three".