1625317566712 has 64 divisors (see below), whose sum is σ = 3552063840000. Its totient is φ = 682784641536.

The previous prime is 1625317566683. The next prime is 1625317566779. The reversal of 1625317566712 is 2176657135261.

It is a self number, because there is not a number n which added to its sum of digits gives 1625317566712.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 437664 + ... + 1855312.

It is an arithmetic number, because the mean of its divisors is an integer number (55500997500).

Almost surely, 2^{1625317566712} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1625317566712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1776031920000).

1625317566712 is an abundant number, since it is smaller than the sum of its proper divisors (1926746273288).

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

1625317566712 is a wasteful number, since it uses less digits than its factorization.

1625317566712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1418068 (or 1418064 counting only the distinct ones).

The product of its digits is 3175200, while the sum is 52.

The spelling of 1625317566712 in words is "one trillion, six hundred twenty-five billion, three hundred seventeen million, five hundred sixty-six thousand, seven hundred twelve".