252660331555 has 16 divisors (see below), whose sum is σ = 307124928000. Its totient is φ = 199508156640.

The previous prime is 252660331543. The next prime is 252660331621. The reversal of 252660331555 is 555133066252.

It is not a de Polignac number, because 252660331555 - 2⁵ = 252660331523 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1206160 + ... + 1400050.

It is an arithmetic number, because the mean of its divisors is an integer number (19195308000).

Almost surely, 2^252660331555 is an apocalyptic number.

252660331555 is a deficient number, since it is larger than the sum of its proper divisors (54464596445).

252660331555 is a wasteful number, since it uses less digits than its factorization.

252660331555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197274.

The product of its (nonzero) digits is 810000, while the sum is 43.

The spelling of 252660331555 in words is "two hundred fifty-two billion, six hundred sixty million, three hundred thirty-one thousand, five hundred fifty-five".