16465920 has 120 divisors (see below), whose sum is σ = 53475744. Its totient is φ = 4325376.

The previous prime is 16465903. The next prime is 16465921. The reversal of 16465920 is 2956461.

It is a tau number, because it is divible by the number of its divisors (120).

It is a super-2 number, since 2×16465920² = 542253042892800, which contains 22 as substring.

It is a nialpdrome in base 8 and base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16465921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 245727 + ... + 245793.

Almost surely, 2^16465920 is an apocalyptic number.

16465920 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 16465920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26737872).

16465920 is an abundant number, since it is smaller than the sum of its proper divisors (37009824).

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

16465920 is an frugal number, since it uses more digits than its factorization.

16465920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103 (or 77 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 16465920 is about 4057.8220759417. The cubic root of 16465920 is about 254.4067717038.

The spelling of 16465920 in words is "sixteen million, four hundred sixty-five thousand, nine hundred twenty".