16465980 has 48 divisors (see below), whose sum is σ = 47093760. Its totient is φ = 4296768.

The previous prime is 16465973. The next prime is 16466029. The reversal of 16465980 is 8956461.

16465980 = T₃₂₁ + T₃₂₂ + ... + T₅₀₈.

16465980 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×16465980² = 542256994720800, which contains 22 as substring.

It is a congruent number.

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, 100 + ... + 5739.

It is an arithmetic number, because the mean of its divisors is an integer number (981120).

Almost surely, 2^16465980 is an apocalyptic number.

16465980 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 16465980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23546880).

16465980 is an abundant number, since it is smaller than the sum of its proper divisors (30627780).

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

16465980 is a wasteful number, since it uses less digits than its factorization.

16465980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5898 (or 5896 counting only the distinct ones).

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

The square root of 16465980 is about 4057.8294690635. The cubic root of 16465980 is about 254.4070807135.

It can be divided in two parts, 1646 and 5980, that added together give a triangular number (7626 = T₁₂₃).

The spelling of 16465980 in words is "sixteen million, four hundred sixty-five thousand, nine hundred eighty".