1625252255616 has 64 divisors (see below), whose sum is σ = 4709537798400. Its totient is φ = 492500682240.

The previous prime is 1625252255593. The next prime is 1625252255629. The reversal of 1625252255616 is 6165522525261.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 192378856 + ... + 192387303.

It is an arithmetic number, because the mean of its divisors is an integer number (73586528100).

Almost surely, 2^{1625252255616} is an apocalyptic number.

1625252255616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1625252255616 is an abundant number, since it is smaller than the sum of its proper divisors (3084285542784).

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

1625252255616 is a wasteful number, since it uses less digits than its factorization.

1625252255616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384766187 (or 384766175 counting only the distinct ones).

The product of its digits is 2160000, while the sum is 48.

The spelling of 1625252255616 in words is "one trillion, six hundred twenty-five billion, two hundred fifty-two million, two hundred fifty-five thousand, six hundred sixteen".