16660442737756 has 12 divisors (see below), whose sum is σ = 29833816065592. Its totient is φ = 8136495290448.

The previous prime is 16660442737751. The next prime is 16660442737837. The reversal of 16660442737756 is 65773724406661.

It is a happy number.

It is a super-3 number, since 3×16660442737756³ (a number of 41 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (64) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16660442737751) 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, 48431519415 + ... + 48431519758.

Almost surely, 2^{16660442737756} is an apocalyptic number.

It is an amenable number.

16660442737756 is a deficient number, since it is larger than the sum of its proper divisors (13173373327836).

16660442737756 is a wasteful number, since it uses less digits than its factorization.

16660442737756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96863039220 (or 96863039218 counting only the distinct ones).

The product of its (nonzero) digits is 213373440, while the sum is 64.

The spelling of 16660442737756 in words is "sixteen trillion, six hundred sixty billion, four hundred forty-two million, seven hundred thirty-seven thousand, seven hundred fifty-six".