16686926869252 has 48 divisors (see below), whose sum is σ = 30755952460800. Its totient is φ = 7899995543040.

The previous prime is 16686926869247. The next prime is 16686926869267. The reversal of 16686926869252 is 25296862968661.

It is a Harshad number since it is a multiple of its sum of digits (76).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1409481949 + ... + 1409493787.

It is an arithmetic number, because the mean of its divisors is an integer number (640749009600).

Almost surely, 2^{16686926869252} is an apocalyptic number.

It is an amenable number.

16686926869252 is a deficient number, since it is larger than the sum of its proper divisors (14069025591548).

16686926869252 is a wasteful number, since it uses less digits than its factorization.

16686926869252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20476 (or 20474 counting only the distinct ones).

The product of its digits is 1612431360, while the sum is 76.

The spelling of 16686926869252 in words is "sixteen trillion, six hundred eighty-six billion, nine hundred twenty-six million, eight hundred sixty-nine thousand, two hundred fifty-two".