232489645551 has 16 divisors (see below), whose sum is σ = 364689640800. Its totient is φ = 145875855744.

The previous prime is 232489645523. The next prime is 232489645571. The reversal of 232489645551 is 155546984232.

232489645551 is a `hidden beast` number, since 2 + 3 + 2 + 4 + 89 + 6 + 4 + 5 + 551 = 666.

It is not a de Polignac number, because 232489645551 - 2³³ = 223899710959 is a prime.

It is a super-2 number, since 2×232489645551² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232489645571) 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 15 ways as a sum of consecutive naturals, for example, 253256236 + ... + 253257153.

It is an arithmetic number, because the mean of its divisors is an integer number (22793102550).

Almost surely, 2^232489645551 is an apocalyptic number.

232489645551 is a deficient number, since it is larger than the sum of its proper divisors (132199995249).

232489645551 is a wasteful number, since it uses less digits than its factorization.

232489645551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 506513415 (or 506513409 counting only the distinct ones).

The product of its digits is 10368000, while the sum is 54.

The spelling of 232489645551 in words is "two hundred thirty-two billion, four hundred eighty-nine million, six hundred forty-five thousand, five hundred fifty-one".