16660447507630 has 8 divisors (see below), whose sum is σ = 29988805513752. Its totient is φ = 6664179003048.

The previous prime is 16660447507603. The next prime is 16660447507663. The reversal of 16660447507630 is 3670574406661.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×16660447507630² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 833022375372 + ... + 833022375391.

It is an arithmetic number, because the mean of its divisors is an integer number (3748600689219).

Almost surely, 2^{16660447507630} is an apocalyptic number.

16660447507630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16660447507630 is a deficient number, since it is larger than the sum of its proper divisors (13328358006122).

16660447507630 is a wasteful number, since it uses less digits than its factorization.

16660447507630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1666044750770.

The product of its (nonzero) digits is 15240960, while the sum is 55.

The spelling of 16660447507630 in words is "sixteen trillion, six hundred sixty billion, four hundred forty-seven million, five hundred seven thousand, six hundred thirty".