16261392530 has 16 divisors (see below), whose sum is σ = 29984422104. Its totient is φ = 6345909120.

The previous prime is 16261392529. The next prime is 16261392569. The reversal of 16261392530 is 3529316261.

It can be written as a sum of positive squares in 4 ways, for example, as 6778722889 + 9482669641 = 82333^2 + 97379^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19830557 + ... + 19831376.

Almost surely, 2^16261392530 is an apocalyptic number.

16261392530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16261392530 is a deficient number, since it is larger than the sum of its proper divisors (13723029574).

16261392530 is a wasteful number, since it uses less digits than its factorization.

16261392530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39661981.

The product of its (nonzero) digits is 58320, while the sum is 38.

The spelling of 16261392530 in words is "sixteen billion, two hundred sixty-one million, three hundred ninety-two thousand, five hundred thirty".