16715430425 has 48 divisors (see below), whose sum is σ = 21704079600. Its totient is φ = 12759859200.

The previous prime is 16715430409. The next prime is 16715430449. The reversal of 16715430425 is 52403451761.

It can be written as a sum of positive squares in 24 ways, for example, as 16286609161 + 428821264 = 127619^2 + 20708^2 .

It is not a de Polignac number, because 16715430425 - 2⁴ = 16715430409 is a prime.

It is a super-2 number, since 2×16715430425² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8847881 + ... + 8849769.

It is an arithmetic number, because the mean of its divisors is an integer number (452168325).

Almost surely, 2^16715430425 is an apocalyptic number.

It is an amenable number.

16715430425 is a deficient number, since it is larger than the sum of its proper divisors (4988649175).

16715430425 is a wasteful number, since it uses less digits than its factorization.

16715430425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2126 (or 2121 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 38.

The spelling of 16715430425 in words is "sixteen billion, seven hundred fifteen million, four hundred thirty thousand, four hundred twenty-five".