216076404563431 has 4 divisors (see below), whose sum is σ = 218303996363152. Its totient is φ = 213848812763712.

The previous prime is 216076404563413. The next prime is 216076404563501. The reversal of 216076404563431 is 134365404670612.

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

It is a cyclic number.

It is not a de Polignac number, because 216076404563431 - 2³⁵ = 216042044825063 is a prime.

It is a super-2 number, since 2×216076404563431² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216076404563231) 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, 1113795899715 + ... + 1113795899908.

It is an arithmetic number, because the mean of its divisors is an integer number (54575999090788).

Almost surely, 2^{216076404563431} is an apocalyptic number.

216076404563431 is a deficient number, since it is larger than the sum of its proper divisors (2227591799721).

216076404563431 is an equidigital number, since it uses as much as digits as its factorization.

216076404563431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2227591799720.

The product of its (nonzero) digits is 8709120, while the sum is 52.

The spelling of 216076404563431 in words is "two hundred sixteen trillion, seventy-six billion, four hundred four million, five hundred sixty-three thousand, four hundred thirty-one".