1252661356152 has 48 divisors (see below), whose sum is σ = 3540129924240. Its totient is φ = 399399272448.

The previous prime is 1252661356127. The next prime is 1252661356153. The reversal of 1252661356152 is 2516531662521.

1252661356152 is a `hidden beast` number, since 1 + 2 + 5 + 26 + 6 + 1 + 3 + 5 + 615 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 1252661356098 and 1252661356107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1252661356153) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 378217353 + ... + 378220664.

It is an arithmetic number, because the mean of its divisors is an integer number (73752706755).

Almost surely, 2^{1252661356152} is an apocalyptic number.

1252661356152 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1252661356152 is an abundant number, since it is smaller than the sum of its proper divisors (2287468568088).

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

1252661356152 is a wasteful number, since it uses less digits than its factorization.

1252661356152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 756438052 (or 756438045 counting only the distinct ones).

The product of its digits is 648000, while the sum is 45.

The spelling of 1252661356152 in words is "one trillion, two hundred fifty-two billion, six hundred sixty-one million, three hundred fifty-six thousand, one hundred fifty-two".