6166987964 has 24 divisors (see below), whose sum is σ = 10883448576. Its totient is φ = 3057470000.

The previous prime is 6166987961. The next prime is 6166987973. The reversal of 6166987964 is 4697896616.

It is a junction number, because it is equal to n+sod(n) for n = 6166987897 and 6166987906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6166987961) 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, 756269 + ... + 764379.

It is an arithmetic number, because the mean of its divisors is an integer number (453477024).

Almost surely, 2^6166987964 is an apocalyptic number.

It is an amenable number.

6166987964 is a deficient number, since it is larger than the sum of its proper divisors (4716460612).

6166987964 is a wasteful number, since it uses less digits than its factorization.

6166987964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9697 (or 9695 counting only the distinct ones).

The product of its digits is 23514624, while the sum is 62.

The square root of 6166987964 is about 78530.1723161232. The cubic root of 6166987964 is about 1833.8242029138.

The spelling of 6166987964 in words is "six billion, one hundred sixty-six million, nine hundred eighty-seven thousand, nine hundred sixty-four".