16025626638 has 48 divisors (see below), whose sum is σ = 40962594816. Its totient is φ = 4431047760.

The previous prime is 16025626601. The next prime is 16025626777. The reversal of 16025626638 is 83662652061.

16025626638 is a `hidden beast` number, since 1 + 6 + 0 + 2 + 5 + 6 + 2 + 6 + 638 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 16025626593 and 16025626602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2047506 + ... + 2055317.

It is an arithmetic number, because the mean of its divisors is an integer number (853387392).

Almost surely, 2^16025626638 is an apocalyptic number.

16025626638 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

16025626638 is an abundant number, since it is smaller than the sum of its proper divisors (24936968178).

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

16025626638 is a wasteful number, since it uses less digits than its factorization.

16025626638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4102869 (or 4102866 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 45.

The spelling of 16025626638 in words is "sixteen billion, twenty-five million, six hundred twenty-six thousand, six hundred thirty-eight".