15971331348 has 72 divisors (see below), whose sum is σ = 47386440192. Its totient is φ = 4439904192.

The previous prime is 15971331331. The next prime is 15971331349. The reversal of 15971331348 is 84313317951.

15971331348 is a `hidden beast` number, since 1 + 597 + 1 + 3 + 3 + 13 + 48 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15971331349) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 847140 + ... + 865787.

Almost surely, 2^15971331348 is an apocalyptic number.

15971331348 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

15971331348 is an abundant number, since it is smaller than the sum of its proper divisors (31415108844).

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

15971331348 is a wasteful number, since it uses less digits than its factorization.

15971331348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1712981 (or 1712976 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The spelling of 15971331348 in words is "fifteen billion, nine hundred seventy-one million, three hundred thirty-one thousand, three hundred forty-eight".