252611566000 has 80 divisors (see below), whose sum is σ = 613070011008. Its totient is φ = 100671552000.

The previous prime is 252611565979. The next prime is 252611566007. The reversal of 252611566000 is 665116252.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (252611566007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 308964 + ... + 775036.

Almost surely, 2^252611566000 is an apocalyptic number.

252611566000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 252611566000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (306535005504).

252611566000 is an abundant number, since it is smaller than the sum of its proper divisors (360458445008).

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

252611566000 is a wasteful number, since it uses less digits than its factorization.

252611566000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466367 (or 466351 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 34.

The spelling of 252611566000 in words is "two hundred fifty-two billion, six hundred eleven million, five hundred sixty-six thousand".