16567980 has 96 divisors (see below), whose sum is σ = 54528768. Its totient is φ = 3705600.

The previous prime is 16567951. The next prime is 16567997. The reversal of 16567980 is 8976561.

It is a super-2 number, since 2×16567980² = 548995922560800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7615 + ... + 9545.

It is an arithmetic number, because the mean of its divisors is an integer number (568008).

Almost surely, 2^16567980 is an apocalyptic number.

16567980 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 16567980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27264384).

16567980 is an abundant number, since it is smaller than the sum of its proper divisors (37960788).

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

16567980 is a wasteful number, since it uses less digits than its factorization.

16567980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1967 (or 1965 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 42.

The square root of 16567980 is about 4070.3783607915. The cubic root of 16567980 is about 254.9313156037.

The spelling of 16567980 in words is "sixteen million, five hundred sixty-seven thousand, nine hundred eighty".