65657470231 has 8 divisors (see below), whose sum is σ = 66748071104. Its totient is φ = 64567329120.

The previous prime is 65657470217. The next prime is 65657470243. The reversal of 65657470231 is 13207475656.

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 65657470231 - 2¹⁷ = 65657339159 is a prime.

It is a super-2 number, since 2×65657470231² (a number of 22 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 (65657470331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 179245 + ... + 404281.

It is an arithmetic number, because the mean of its divisors is an integer number (8343508888).

Almost surely, 2^65657470231 is an apocalyptic number.

65657470231 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

65657470231 is a deficient number, since it is larger than the sum of its proper divisors (1090600873).

65657470231 is a wasteful number, since it uses less digits than its factorization.

65657470231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229881.

The product of its (nonzero) digits is 1058400, while the sum is 46.

The spelling of 65657470231 in words is "sixty-five billion, six hundred fifty-seven million, four hundred seventy thousand, two hundred thirty-one".