15664070325 has 24 divisors (see below), whose sum is σ = 26041034656. Its totient is φ = 8308008000.

The previous prime is 15664070291. The next prime is 15664070369. The reversal of 15664070325 is 52307046651.

It is not a de Polignac number, because 15664070325 - 2⁸ = 15664070069 is a prime.

It is a Duffinian number.

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, 563371 + ... + 590520.

Almost surely, 2^15664070325 is an apocalyptic number.

15664070325 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

15664070325 is a deficient number, since it is larger than the sum of its proper divisors (10376964331).

15664070325 is a wasteful number, since it uses less digits than its factorization.

15664070325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1154085 (or 1154080 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 39.

The spelling of 15664070325 in words is "fifteen billion, six hundred sixty-four million, seventy thousand, three hundred twenty-five".