1251466205216 has 48 divisors (see below), whose sum is σ = 2494994826240. Its totient is φ = 617863438080.

The previous prime is 1251466205189. The next prime is 1251466205263. The reversal of 1251466205216 is 6125026641521.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127790 + ... + 1587218.

It is an arithmetic number, because the mean of its divisors is an integer number (51979058880).

Almost surely, 2^{1251466205216} is an apocalyptic number.

1251466205216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1251466205216 is a deficient number, since it is larger than the sum of its proper divisors (1243528621024).

1251466205216 is a wasteful number, since it uses less digits than its factorization.

1251466205216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1459777 (or 1459769 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 41.

The spelling of 1251466205216 in words is "one trillion, two hundred fifty-one billion, four hundred sixty-six million, two hundred five thousand, two hundred sixteen".