252766266540 has 48 divisors (see below), whose sum is σ = 712253506272. Its totient is φ = 66975008256.

The previous prime is 252766266539. The next prime is 252766266551. The reversal of 252766266540 is 45662667252.

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, 13407049 + ... + 13425888.

It is an arithmetic number, because the mean of its divisors is an integer number (14838614714).

Almost surely, 2^252766266540 is an apocalyptic number.

252766266540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

252766266540 is an abundant number, since it is smaller than the sum of its proper divisors (459487239732).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

252766266540 is a wasteful number, since it uses less digits than its factorization.

252766266540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26833106 (or 26833104 counting only the distinct ones).

The product of its (nonzero) digits is 7257600, while the sum is 51.

The spelling of 252766266540 in words is "two hundred fifty-two billion, seven hundred sixty-six million, two hundred sixty-six thousand, five hundred forty".