16512072 has 16 divisors (see below), whose sum is σ = 41280240. Its totient is φ = 5504016.

The previous prime is 16512061. The next prime is 16512073. The reversal of 16512072 is 27021561.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 688003 = 16512072 / (1 + 6 + 5 + 1 + 2 + 0 + 7 + 2).

It is not an unprimeable number, because it can be changed into a prime (16512073) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 343978 + ... + 344025.

It is an arithmetic number, because the mean of its divisors is an integer number (2580015).

Almost surely, 2^16512072 is an apocalyptic number.

16512072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16512072 is an abundant number, since it is smaller than the sum of its proper divisors (24768168).

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

16512072 is a wasteful number, since it uses less digits than its factorization.

16512072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 688012 (or 688008 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 16512072 is about 4063.5048911008. The cubic root of 16512072 is about 254.6442405380.

The spelling of 16512072 in words is "sixteen million, five hundred twelve thousand, seventy-two".