6165156001666 has 8 divisors (see below), whose sum is σ = 9649809393984. Its totient is φ = 2948552870340.

The previous prime is 6165156001601. The next prime is 6165156001673. The reversal of 6165156001666 is 6661006515616.

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

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, 67012565190 + ... + 67012565281.

It is an arithmetic number, because the mean of its divisors is an integer number (1206226174248).

Almost surely, 2^{6165156001666} is an apocalyptic number.

6165156001666 is a deficient number, since it is larger than the sum of its proper divisors (3484653392318).

6165156001666 is a wasteful number, since it uses less digits than its factorization.

6165156001666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134025130496.

The product of its (nonzero) digits is 1166400, while the sum is 49.

The spelling of 6165156001666 in words is "six trillion, one hundred sixty-five billion, one hundred fifty-six million, one thousand, six hundred sixty-six".