16666790734 has 8 divisors (see below), whose sum is σ = 27272930328. Its totient is φ = 7575813960.

The previous prime is 16666790719. The next prime is 16666790753. The reversal of 16666790734 is 43709766661.

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

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, 378790677 + ... + 378790720.

It is an arithmetic number, because the mean of its divisors is an integer number (3409116291).

Almost surely, 2^16666790734 is an apocalyptic number.

16666790734 is a deficient number, since it is larger than the sum of its proper divisors (10606139594).

16666790734 is a wasteful number, since it uses less digits than its factorization.

16666790734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 757581410.

The product of its (nonzero) digits is 6858432, while the sum is 55.

The spelling of 16666790734 in words is "sixteen billion, six hundred sixty-six million, seven hundred ninety thousand, seven hundred thirty-four".