1372264650561 has 64 divisors (see below), whose sum is σ = 2364306554880. Its totient is φ = 689589089280.

The previous prime is 1372264650487. The next prime is 1372264650667. The reversal of 1372264650561 is 1650564622731.

It is not a de Polignac number, because 1372264650561 - 2¹⁰ = 1372264649537 is a prime.

It is a super-2 number, since 2×1372264650561² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1372264650561.

It is not an unprimeable number, because it can be changed into a prime (1372264650461) 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, 1816921 + ... + 2458806.

It is an arithmetic number, because the mean of its divisors is an integer number (36942289920).

Almost surely, 2^{1372264650561} is an apocalyptic number.

It is an amenable number.

1372264650561 is a deficient number, since it is larger than the sum of its proper divisors (992041904319).

1372264650561 is a wasteful number, since it uses less digits than its factorization.

1372264650561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4275814.

The product of its (nonzero) digits is 1814400, while the sum is 48.

The spelling of 1372264650561 in words is "one trillion, three hundred seventy-two billion, two hundred sixty-four million, six hundred fifty thousand, five hundred sixty-one".