722336451566413 has 4 divisors (see below), whose sum is σ = 729488297621628. Its totient is φ = 715184605511200.

The previous prime is 722336451566137. The next prime is 722336451566447. The reversal of 722336451566413 is 314665154633227.

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

It can be written as a sum of positive squares in 2 ways, for example, as 694970966739204 + 27365484827209 = 26362302^2 + 5231203^2 .

It is a cyclic number.

It is not a de Polignac number, because 722336451566413 - 2¹⁷ = 722336451435341 is a prime.

It is a super-2 number, since 2×722336451566413² (a number of 31 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 (722336451563413) 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, 3575923027456 + ... + 3575923027657.

It is an arithmetic number, because the mean of its divisors is an integer number (182372074405407).

Almost surely, 2^{722336451566413} is an apocalyptic number.

It is an amenable number.

722336451566413 is a deficient number, since it is larger than the sum of its proper divisors (7151846055215).

722336451566413 is a wasteful number, since it uses less digits than its factorization.

722336451566413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7151846055214.

The product of its digits is 65318400, while the sum is 58.

The spelling of 722336451566413 in words is "seven hundred twenty-two trillion, three hundred thirty-six billion, four hundred fifty-one million, five hundred sixty-six thousand, four hundred thirteen".