16554464725 has 24 divisors (see below), whose sum is σ = 20903572800. Its totient is φ = 13002528000.

The previous prime is 16554464713. The next prime is 16554464737. The reversal of 16554464725 is 52746445561.

It is an interprime number because it is at equal distance from previous prime (16554464713) and next prime (16554464737).

It is not a de Polignac number, because 16554464725 - 2²³ = 16546076117 is a prime.

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, 408426 + ... + 447124.

It is an arithmetic number, because the mean of its divisors is an integer number (870982200).

Almost surely, 2^16554464725 is an apocalyptic number.

It is an amenable number.

16554464725 is a deficient number, since it is larger than the sum of its proper divisors (4349108075).

16554464725 is a wasteful number, since it uses less digits than its factorization.

16554464725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39021 (or 39016 counting only the distinct ones).

The product of its digits is 4032000, while the sum is 49.

The spelling of 16554464725 in words is "sixteen billion, five hundred fifty-four million, four hundred sixty-four thousand, seven hundred twenty-five".