165772786966 has 8 divisors (see below), whose sum is σ = 248698290744. Its totient is φ = 82873356720.

The previous prime is 165772786943. The next prime is 165772786997. The reversal of 165772786966 is 669687277561.

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 = 165772786895 and 165772786904.

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, 6502480 + ... + 6527923.

It is an arithmetic number, because the mean of its divisors is an integer number (31087286343).

Almost surely, 2^165772786966 is an apocalyptic number.

165772786966 is a deficient number, since it is larger than the sum of its proper divisors (82925503778).

165772786966 is a wasteful number, since it uses less digits than its factorization.

165772786966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13036766.

The product of its digits is 320060160, while the sum is 70.

The spelling of 165772786966 in words is "one hundred sixty-five billion, seven hundred seventy-two million, seven hundred eighty-six thousand, nine hundred sixty-six".