715022216451 has 24 divisors (see below), whose sum is σ = 1074484123440. Its totient is φ = 475158483072.

The previous prime is 715022216449. The next prime is 715022216483. The reversal of 715022216451 is 154612220517.

715022216451 is a `hidden beast` number, since 7 + 1 + 5 + 0 + 2 + 2 + 2 + 1 + 645 + 1 = 666.

It is not a de Polignac number, because 715022216451 - 2¹ = 715022216449 is a prime.

It is a super-2 number, since 2×715022216451² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (715022216431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4624386 + ... + 4776503.

It is an arithmetic number, because the mean of its divisors is an integer number (44770171810).

Almost surely, 2^715022216451 is an apocalyptic number.

715022216451 is a deficient number, since it is larger than the sum of its proper divisors (359461906989).

715022216451 is an equidigital number, since it uses as much as digits as its factorization.

715022216451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9401217 (or 9401205 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 36.

Adding to 715022216451 its reverse (154612220517), we get a palindrome (869634436968).

The spelling of 715022216451 in words is "seven hundred fifteen billion, twenty-two million, two hundred sixteen thousand, four hundred fifty-one".