16155165386 has 4 divisors (see below), whose sum is σ = 24232748082. Its totient is φ = 8077582692.

The previous prime is 16155165379. The next prime is 16155165427. The reversal of 16155165386 is 68356155161.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 9824576161 + 6330589225 = 99119^2 + 79565^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 16155165386.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4038791345 + ... + 4038791348.

Almost surely, 2^16155165386 is an apocalyptic number.

16155165386 is a deficient number, since it is larger than the sum of its proper divisors (8077582696).

16155165386 is an equidigital number, since it uses as much as digits as its factorization.

16155165386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8077582695.

The product of its digits is 648000, while the sum is 47.

The spelling of 16155165386 in words is "sixteen billion, one hundred fifty-five million, one hundred sixty-five thousand, three hundred eighty-six".