6231665655 has 24 divisors (see below), whose sum is σ = 11271188448. Its totient is φ = 3179052096.

The previous prime is 6231665617. The next prime is 6231665683. The reversal of 6231665655 is 5565661326.

6231665655 is a `hidden beast` number, since 6 + 23 + 1 + 66 + 565 + 5 = 666.

It is not a de Polignac number, because 6231665655 - 2¹⁴ = 6231649271 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 6231665655.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3009432 + ... + 3011501.

It is an arithmetic number, because the mean of its divisors is an integer number (469632852).

Almost surely, 2^6231665655 is an apocalyptic number.

6231665655 is a deficient number, since it is larger than the sum of its proper divisors (5039522793).

6231665655 is a wasteful number, since it uses less digits than its factorization.

6231665655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6020967 (or 6020964 counting only the distinct ones).

The product of its digits is 972000, while the sum is 45.

The square root of 6231665655 is about 78940.8997605170. The cubic root of 6231665655 is about 1840.2128037389.

The spelling of 6231665655 in words is "six billion, two hundred thirty-one million, six hundred sixty-five thousand, six hundred fifty-five".