16512166652 has 24 divisors (see below), whose sum is σ = 29789667600. Its totient is φ = 8003399040.

The previous prime is 16512166651. The next prime is 16512166663. The reversal of 16512166652 is 25666121561.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16512166651) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 294902 + ... + 346397.

It is an arithmetic number, because the mean of its divisors is an integer number (1241236150).

Almost surely, 2^16512166652 is an apocalyptic number.

It is an amenable number.

16512166652 is a deficient number, since it is larger than the sum of its proper divisors (13277500948).

16512166652 is a wasteful number, since it uses less digits than its factorization.

16512166652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641501 (or 641499 counting only the distinct ones).

The product of its digits is 129600, while the sum is 41.

The spelling of 16512166652 in words is "sixteen billion, five hundred twelve million, one hundred sixty-six thousand, six hundred fifty-two".