17664272325 has 36 divisors (see below), whose sum is σ = 36158488288. Its totient is φ = 8075095200.

The previous prime is 17664272303. The next prime is 17664272357. The reversal of 17664272325 is 52327246671.

It is not a de Polignac number, because 17664272325 - 2⁶ = 17664272261 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

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 35 ways as a sum of consecutive naturals, for example, 5606131 + ... + 5609280.

Almost surely, 2^17664272325 is an apocalyptic number.

17664272325 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

17664272325 is an abundant number, since it is smaller than the sum of its proper divisors (18494215963).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

17664272325 is a wasteful number, since it uses less digits than its factorization.

17664272325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11215434 (or 11215426 counting only the distinct ones).

The product of its digits is 846720, while the sum is 45.

The spelling of 17664272325 in words is "seventeen billion, six hundred sixty-four million, two hundred seventy-two thousand, three hundred twenty-five".