16130506825 has 6 divisors (see below), whose sum is σ = 20001828494. Its totient is φ = 12904405440.

The previous prime is 16130506823. The next prime is 16130506829. The reversal of 16130506825 is 52860503161.

It can be written as a sum of positive squares in 3 ways, for example, as 1149481216 + 14981025609 = 33904^2 + 122397^2 .

It is not a de Polignac number, because 16130506825 - 2¹ = 16130506823 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16130506823) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 322610112 + ... + 322610161.

Almost surely, 2^16130506825 is an apocalyptic number.

It is an amenable number.

16130506825 is a deficient number, since it is larger than the sum of its proper divisors (3871321669).

16130506825 is an equidigital number, since it uses as much as digits as its factorization.

16130506825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 645220283 (or 645220278 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 37.

The spelling of 16130506825 in words is "sixteen billion, one hundred thirty million, five hundred six thousand, eight hundred twenty-five".