1625303221641 has 96 divisors (see below), whose sum is σ = 2618130677760. Its totient is φ = 963345600000.

The previous prime is 1625303221621. The next prime is 1625303221669. The reversal of 1625303221641 is 1461223035261.

1625303221641 is a `hidden beast` number, since 1 + 6 + 2 + 5 + 3 + 0 + 3 + 2 + 2 + 1 + 641 = 666.

It is not a de Polignac number, because 1625303221641 - 2³⁷ = 1487864268169 is a prime.

It is a super-2 number, since 2×1625303221641² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1625303221596 and 1625303221605.

It is not an unprimeable number, because it can be changed into a prime (1625303221601) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 538356630 + ... + 538359648.

It is an arithmetic number, because the mean of its divisors is an integer number (27272194560).

Almost surely, 2^{1625303221641} is an apocalyptic number.

1625303221641 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1625303221641 is a deficient number, since it is larger than the sum of its proper divisors (992827456119).

1625303221641 is a wasteful number, since it uses less digits than its factorization.

1625303221641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3699 (or 3696 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The spelling of 1625303221641 in words is "one trillion, six hundred twenty-five billion, three hundred three million, two hundred twenty-one thousand, six hundred forty-one".