20231360457555 has 64 divisors (see below), whose sum is σ = 36944079419520. Its totient is φ = 9365714313216.

The previous prime is 20231360457541. The next prime is 20231360457557. The reversal of 20231360457555 is 55575406313202.

It is not a de Polignac number, because 20231360457555 - 2⁹ = 20231360457043 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20231360457557) 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, 924769 + ... + 6427901.

It is an arithmetic number, because the mean of its divisors is an integer number (577251240930).

Almost surely, 2^{20231360457555} is an apocalyptic number.

20231360457555 is a deficient number, since it is larger than the sum of its proper divisors (16712718961965).

20231360457555 is a wasteful number, since it uses less digits than its factorization.

20231360457555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5504280.

The product of its (nonzero) digits is 3780000, while the sum is 48.

The spelling of 20231360457555 in words is "twenty trillion, two hundred thirty-one billion, three hundred sixty million, four hundred fifty-seven thousand, five hundred fifty-five".