1200255656502 has 48 divisors (see below), whose sum is σ = 2797189053120. Its totient is φ = 342345930192.

The previous prime is 1200255656437. The next prime is 1200255656519. The reversal of 1200255656502 is 2056565520021.

It is a super-2 number, since 2×1200255656502² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3304852 + ... + 3650007.

It is an arithmetic number, because the mean of its divisors is an integer number (58274771940).

Almost surely, 2^{1200255656502} is an apocalyptic number.

1200255656502 is an abundant number, since it is smaller than the sum of its proper divisors (1596933396618).

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

1200255656502 is a wasteful number, since it uses less digits than its factorization.

1200255656502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6955465 (or 6955458 counting only the distinct ones).

The product of its (nonzero) digits is 180000, while the sum is 39.

The spelling of 1200255656502 in words is "one trillion, two hundred billion, two hundred fifty-five million, six hundred fifty-six thousand, five hundred two".