1625953736816 has 20 divisors (see below), whose sum is σ = 3316089858600. Its totient is φ = 770188612032.

The previous prime is 1625953736713. The next prime is 1625953736839. The reversal of 1625953736816 is 6186373595261.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2674265711 + ... + 2674266318.

It is an arithmetic number, because the mean of its divisors is an integer number (165804492930).

Almost surely, 2^{1625953736816} is an apocalyptic number.

1625953736816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1625953736816 is an abundant number, since it is smaller than the sum of its proper divisors (1690136121784).

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

1625953736816 is a wasteful number, since it uses less digits than its factorization.

1625953736816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5348532056 (or 5348532050 counting only the distinct ones).

The product of its digits is 48988800, while the sum is 62.

The spelling of 1625953736816 in words is "one trillion, six hundred twenty-five billion, nine hundred fifty-three million, seven hundred thirty-six thousand, eight hundred sixteen".