16001880 has 32 divisors (see below), whose sum is σ = 48006000. Its totient is φ = 4267136.

The previous prime is 16001863. The next prime is 16001893. The reversal of 16001880 is 8810061.

16001880 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 16001880.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66555 + ... + 66794.

Almost surely, 2^16001880 is an apocalyptic number.

16001880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16001880 is an abundant number, since it is smaller than the sum of its proper divisors (32004120).

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

16001880 is a wasteful number, since it uses less digits than its factorization.

16001880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133363 (or 133359 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 24.

The square root of 16001880 is about 4000.2349930973. The cubic root of 16001880 is about 251.9940789740.

The spelling of 16001880 in words is "sixteen million, one thousand, eight hundred eighty".