16187066694 has 12 divisors (see below), whose sum is σ = 35071977876. Its totient is φ = 5395688892.

The previous prime is 16187066657. The next prime is 16187066699. The reversal of 16187066694 is 49666078161.

It is a happy number.

It is a super-2 number, since 2×16187066694² (a number of 21 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 16187066694.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16187066699) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 449640724 + ... + 449640759.

It is an arithmetic number, because the mean of its divisors is an integer number (2922664823).

Almost surely, 2^16187066694 is an apocalyptic number.

16187066694 is an abundant number, since it is smaller than the sum of its proper divisors (18884911182).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16187066694 is a wasteful number, since it uses less digits than its factorization.

16187066694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 899281491 (or 899281488 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 54.

The spelling of 16187066694 in words is "sixteen billion, one hundred eighty-seven million, sixty-six thousand, six hundred ninety-four".