16425490557 has 96 divisors (see below), whose sum is σ = 27440803200. Its totient is φ = 8687347200.

The previous prime is 16425490547. The next prime is 16425490589. The reversal of 16425490557 is 75509452461.

16425490557 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 16425490557 - 2⁷ = 16425490429 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16425490537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 39015207 + ... + 39015627.

It is an arithmetic number, because the mean of its divisors is an integer number (285841700).

Almost surely, 2^16425490557 is an apocalyptic number.

It is an amenable number.

16425490557 is a deficient number, since it is larger than the sum of its proper divisors (11015312643).

16425490557 is a wasteful number, since it uses less digits than its factorization.

16425490557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 747 (or 740 counting only the distinct ones).

The product of its (nonzero) digits is 1512000, while the sum is 48.

The spelling of 16425490557 in words is "sixteen billion, four hundred twenty-five million, four hundred ninety thousand, five hundred fifty-seven".