15966480 has 80 divisors (see below), whose sum is σ = 50246784. Its totient is φ = 4193280.

The previous prime is 15966469. The next prime is 15966493. The reversal of 15966480 is 8466951.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16572 + ... + 17508.

Almost surely, 2^15966480 is an apocalyptic number.

15966480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15966480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25123392).

15966480 is an abundant number, since it is smaller than the sum of its proper divisors (34280304).

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

15966480 is a wasteful number, since it uses less digits than its factorization.

15966480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1024 (or 1018 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 15966480 is about 3995.8078031857. The cubic root of 15966480 is about 251.8081179774.

The spelling of 15966480 in words is "fifteen million, nine hundred sixty-six thousand, four hundred eighty".