231666051 has 8 divisors (see below), whose sum is σ = 322318080. Its totient is φ = 147729032.

The previous prime is 231666013. The next prime is 231666059. The reversal of 231666051 is 150666132.

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 231666051 - 2²³ = 223277443 is a prime.

It is not an unprimeable number, because it can be changed into a prime (231666059) 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, 1678671 + ... + 1678808.

It is an arithmetic number, because the mean of its divisors is an integer number (40289760).

Almost surely, 2^231666051 is an apocalyptic number.

231666051 is a deficient number, since it is larger than the sum of its proper divisors (90652029).

231666051 is a wasteful number, since it uses less digits than its factorization.

231666051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3357505.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 231666051 is about 15220.5798509781. The cubic root of 231666051 is about 614.1683968006.

The spelling of 231666051 in words is "two hundred thirty-one million, six hundred sixty-six thousand, fifty-one".