6915499966 has 8 divisors (see below), whose sum is σ = 10376802720. Its totient is φ = 3456565728.

The previous prime is 6915499961. The next prime is 6915500003. The reversal of 6915499966 is 6699945196.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 6915499898 and 6915499907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6915499961) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 584811 + ... + 596518.

It is an arithmetic number, because the mean of its divisors is an integer number (1297100340).

Almost surely, 2^6915499966 is an apocalyptic number.

6915499966 is a deficient number, since it is larger than the sum of its proper divisors (3461302754).

6915499966 is a wasteful number, since it uses less digits than its factorization.

6915499966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1184258.

The product of its digits is 28343520, while the sum is 64.

The square root of 6915499966 is about 83159.4851234662. The cubic root of 6915499966 is about 1905.2027271893.

The spelling of 6915499966 in words is "six billion, nine hundred fifteen million, four hundred ninety-nine thousand, nine hundred sixty-six".