16261260836425 has 72 divisors (see below), whose sum is σ = 22993647756800. Its totient is φ = 11387350656000.

The previous prime is 16261260836417. The next prime is 16261260836449. The reversal of 16261260836425 is 52463806216261.

It is not a de Polignac number, because 16261260836425 - 2³ = 16261260836417 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 18225529 + ... + 19096921.

Almost surely, 2^{16261260836425} is an apocalyptic number.

It is an amenable number.

16261260836425 is a deficient number, since it is larger than the sum of its proper divisors (6732386920375).

16261260836425 is a wasteful number, since it uses less digits than its factorization.

16261260836425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 871655 (or 871639 counting only the distinct ones).

The product of its (nonzero) digits is 4976640, while the sum is 52.

The spelling of 16261260836425 in words is "sixteen trillion, two hundred sixty-one billion, two hundred sixty million, eight hundred thirty-six thousand, four hundred twenty-five".