258379666 has 8 divisors (see below), whose sum is σ = 387730224. Its totient is φ = 129136260.

The previous prime is 258379661. The next prime is 258379669. The reversal of 258379666 is 666973852.

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

It is not an unprimeable number, because it can be changed into a prime (258379661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20460 + ... + 30583.

It is an arithmetic number, because the mean of its divisors is an integer number (48466278).

Almost surely, 2^258379666 is an apocalyptic number.

258379666 is a deficient number, since it is larger than the sum of its proper divisors (129350558).

258379666 is a wasteful number, since it uses less digits than its factorization.

258379666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53576.

The product of its digits is 3265920, while the sum is 52.

The square root of 258379666 is about 16074.1925458170. The cubic root of 258379666 is about 636.9217956629.

The spelling of 258379666 in words is "two hundred fifty-eight million, three hundred seventy-nine thousand, six hundred sixty-six".