56466299266391 has 4 divisors (see below), whose sum is σ = 64532913447312. Its totient is φ = 48399685085472.

The previous prime is 56466299266379. The next prime is 56466299266409. The reversal of 56466299266391 is 19366299266465.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 56466299266391 - 2³⁰ = 56465225524567 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56066299266391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4033307090450 + ... + 4033307090463.

It is an arithmetic number, because the mean of its divisors is an integer number (16133228361828).

Almost surely, 2^{56466299266391} is an apocalyptic number.

56466299266391 is a deficient number, since it is larger than the sum of its proper divisors (8066614180921).

56466299266391 is an equidigital number, since it uses as much as digits as its factorization.

56466299266391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8066614180920.

The product of its digits is 1360488960, while the sum is 74.

Adding to 56466299266391 its sum of digits (74), we get a palindrome (56466299266465).

The spelling of 56466299266391 in words is "fifty-six trillion, four hundred sixty-six billion, two hundred ninety-nine million, two hundred sixty-six thousand, three hundred ninety-one".