16614312520 has 128 divisors (see below), whose sum is σ = 40896576000. Its totient is φ = 6037761024.

The previous prime is 16614312509. The next prime is 16614312563. The reversal of 16614312520 is 2521341661.

It is a happy number.

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, 15062289 + ... + 15063391.

It is an arithmetic number, because the mean of its divisors is an integer number (319504500).

Almost surely, 2^16614312520 is an apocalyptic number.

16614312520 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 16614312520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20448288000).

16614312520 is an abundant number, since it is smaller than the sum of its proper divisors (24282263480).

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

16614312520 is a wasteful number, since it uses less digits than its factorization.

16614312520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1559 (or 1555 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The spelling of 16614312520 in words is "sixteen billion, six hundred fourteen million, three hundred twelve thousand, five hundred twenty".