6915541966 has 16 divisors (see below), whose sum is σ = 10494132480. Its totient is φ = 3417729120.

The previous prime is 6915541949. The next prime is 6915541973. The reversal of 6915541966 is 6691455196.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2320 + ... + 117628.

It is an arithmetic number, because the mean of its divisors is an integer number (655883280).

Almost surely, 2^6915541966 is an apocalyptic number.

6915541966 is a deficient number, since it is larger than the sum of its proper divisors (3578590514).

6915541966 is a wasteful number, since it uses less digits than its factorization.

6915541966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115659.

The product of its digits is 1749600, while the sum is 52.

The square root of 6915541966 is about 83159.7376498988. The cubic root of 6915541966 is about 1905.2065841461.

The spelling of 6915541966 in words is "six billion, nine hundred fifteen million, five hundred forty-one thousand, nine hundred sixty-six".