16686770368370 has 16 divisors (see below), whose sum is σ = 30040411884120. Its totient is φ = 6673769209344.

The previous prime is 16686770368349. The next prime is 16686770368451. The reversal of 16686770368370 is 7386307768661.

16686770368370 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 11957715588049 + 4729054780321 = 3457993^2 + 2174639^2 .

It is a super-2 number, since 2×16686770368370² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 16686770368370.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117292607 + ... + 117434786.

Almost surely, 2^{16686770368370} is an apocalyptic number.

16686770368370 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16686770368370 is a deficient number, since it is larger than the sum of its proper divisors (13353641515750).

16686770368370 is a wasteful number, since it uses less digits than its factorization.

16686770368370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234734509.

The product of its (nonzero) digits is 256048128, while the sum is 68.

The spelling of 16686770368370 in words is "sixteen trillion, six hundred eighty-six billion, seven hundred seventy million, three hundred sixty-eight thousand, three hundred seventy".