6920171966 has 8 divisors (see below), whose sum is σ = 10831573584. Its totient is φ = 3309647440.

The previous prime is 6920171957. The next prime is 6920172013. The reversal of 6920171966 is 6691710296.

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

It is a self number, because there is not a number n which added to its sum of digits gives 6920171966.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75219215 + ... + 75219306.

It is an arithmetic number, because the mean of its divisors is an integer number (1353946698).

Almost surely, 2^6920171966 is an apocalyptic number.

6920171966 is a deficient number, since it is larger than the sum of its proper divisors (3911401618).

6920171966 is a wasteful number, since it uses less digits than its factorization.

6920171966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150438546.

The product of its (nonzero) digits is 244944, while the sum is 47.

The square root of 6920171966 is about 83187.5709826895. The cubic root of 6920171966 is about 1905.6316719972.

The spelling of 6920171966 in words is "six billion, nine hundred twenty million, one hundred seventy-one thousand, nine hundred sixty-six".