1630166254400 has 84 divisors (see below), whose sum is σ = 4026140530380. Its totient is φ = 649642291200.

The previous prime is 1630166254391. The next prime is 1630166254403. The reversal of 1630166254400 is 44526610361.

It can be written as a sum of positive squares in 6 ways, for example, as 520464130624 + 1109702123776 = 721432^2 + 1053424^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1630166254403) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1463381 + ... + 2324180.

Almost surely, 2^{1630166254400} is an apocalyptic number.

1630166254400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1630166254400 is an abundant number, since it is smaller than the sum of its proper divisors (2395974275980).

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

1630166254400 is a wasteful number, since it uses less digits than its factorization.

1630166254400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3787852 (or 3787837 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 38.

The spelling of 1630166254400 in words is "one trillion, six hundred thirty billion, one hundred sixty-six million, two hundred fifty-four thousand, four hundred".