561265462667 has 16 divisors (see below), whose sum is σ = 731422867392. Its totient is φ = 417955921920.

The previous prime is 561265462567. The next prime is 561265462679. The reversal of 561265462667 is 766264562165.

It is a cyclic number.

It is not a de Polignac number, because 561265462667 - 2¹⁴ = 561265446283 is a prime.

It is not an unprimeable number, because it can be changed into a prime (561265462067) 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, 181402934 + ... + 181406027.

It is an arithmetic number, because the mean of its divisors is an integer number (45713929212).

Almost surely, 2^561265462667 is an apocalyptic number.

561265462667 is a deficient number, since it is larger than the sum of its proper divisors (170157404725).

561265462667 is a wasteful number, since it uses less digits than its factorization.

561265462667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362808998.

The product of its digits is 21772800, while the sum is 56.

The spelling of 561265462667 in words is "five hundred sixty-one billion, two hundred sixty-five million, four hundred sixty-two thousand, six hundred sixty-seven".