722666461231 has 32 divisors (see below), whose sum is σ = 862298740800. Its totient is φ = 596998702080.

The previous prime is 722666461219. The next prime is 722666461243. The reversal of 722666461231 is 132164666227.

It is an interprime number because it is at equal distance from previous prime (722666461219) and next prime (722666461243).

It is not a de Polignac number, because 722666461231 - 2⁷ = 722666461103 is a prime.

It is a super-2 number, since 2×722666461231² (a number of 25 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 (722666461631) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2790505 + ... + 3038461.

It is an arithmetic number, because the mean of its divisors is an integer number (26946835650).

Almost surely, 2^722666461231 is an apocalyptic number.

722666461231 is a deficient number, since it is larger than the sum of its proper divisors (139632279569).

722666461231 is a wasteful number, since it uses less digits than its factorization.

722666461231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248299.

The product of its digits is 870912, while the sum is 46.

The spelling of 722666461231 in words is "seven hundred twenty-two billion, six hundred sixty-six million, four hundred sixty-one thousand, two hundred thirty-one".