252239491766 has 8 divisors (see below), whose sum is σ = 387587511864. Its totient is φ = 123043654480.

The previous prime is 252239491753. The next prime is 252239491783. The reversal of 252239491766 is 667194932252.

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

It is a super-2 number, since 2×252239491766² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1538045600 + ... + 1538045763.

It is an arithmetic number, because the mean of its divisors is an integer number (48448438983).

Almost surely, 2^252239491766 is an apocalyptic number.

252239491766 is a deficient number, since it is larger than the sum of its proper divisors (135348020098).

252239491766 is a wasteful number, since it uses less digits than its factorization.

252239491766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3076091406.

The product of its digits is 9797760, while the sum is 56.

The spelling of 252239491766 in words is "two hundred fifty-two billion, two hundred thirty-nine million, four hundred ninety-one thousand, seven hundred sixty-six".