16662732480 has 224 divisors, whose sum is σ = 61876838400. Its totient is φ = 4209490944.

The previous prime is 16662732419. The next prime is 16662732491. The reversal of 16662732480 is 8423726661.

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 113409 + ... + 214911.

Almost surely, 2^16662732480 is an apocalyptic number.

16662732480 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 16662732480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30938419200).

16662732480 is an abundant number, since it is smaller than the sum of its proper divisors (45214105920).

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

16662732480 is a wasteful number, since it uses less digits than its factorization.

16662732480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101548 (or 101532 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 45.

The spelling of 16662732480 in words is "sixteen billion, six hundred sixty-two million, seven hundred thirty-two thousand, four hundred eighty".