662456324623621 has 16 divisors (see below), whose sum is σ = 722792623408128. Its totient is φ = 602138863145200.

The previous prime is 662456324623607. The next prime is 662456324623631. The reversal of 662456324623621 is 126326423654266.

It is a cyclic number.

It is not a de Polignac number, because 662456324623621 - 2²¹ = 662456322526469 is a prime.

It is a super-2 number, since 2×662456324623621² (a number of 30 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 (662456324623631) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3767914806 + ... + 3768090616.

It is an arithmetic number, because the mean of its divisors is an integer number (45174538963008).

Almost surely, 2^{662456324623621} is an apocalyptic number.

It is an amenable number.

662456324623621 is a deficient number, since it is larger than the sum of its proper divisors (60336298784507).

662456324623621 is a wasteful number, since it uses less digits than its factorization.

662456324623621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227432.

The product of its digits is 89579520, while the sum is 58.

The spelling of 662456324623621 in words is "six hundred sixty-two trillion, four hundred fifty-six billion, three hundred twenty-four million, six hundred twenty-three thousand, six hundred twenty-one".