655630366531 has 8 divisors (see below), whose sum is σ = 749337592320. Its totient is φ = 561934576968.

The previous prime is 655630366493. The next prime is 655630366577. The reversal of 655630366531 is 135663036556.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 655630366531 - 2¹⁷ = 655630235459 is a prime.

It is a super-2 number, since 2×655630366531² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (655630360531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2735851 + ... + 2965828.

It is an arithmetic number, because the mean of its divisors is an integer number (93667199040).

Almost surely, 2^655630366531 is an apocalyptic number.

655630366531 is a deficient number, since it is larger than the sum of its proper divisors (93707225789).

655630366531 is a wasteful number, since it uses less digits than its factorization.

655630366531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5718113.

The product of its (nonzero) digits is 4374000, while the sum is 49.

The spelling of 655630366531 in words is "six hundred fifty-five billion, six hundred thirty million, three hundred sixty-six thousand, five hundred thirty-one".