766161772 has 6 divisors (see below), whose sum is σ = 1340783108. Its totient is φ = 383080884.

The previous prime is 766161761. The next prime is 766161821. The reversal of 766161772 is 277161667.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95770218 + ... + 95770225.

Almost surely, 2^766161772 is an apocalyptic number.

It is an amenable number.

766161772 is a deficient number, since it is larger than the sum of its proper divisors (574621336).

766161772 is a wasteful number, since it uses less digits than its factorization.

766161772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191540447 (or 191540445 counting only the distinct ones).

The product of its digits is 148176, while the sum is 43.

The square root of 766161772 is about 27679.6273818850. The cubic root of 766161772 is about 915.0401694370.

The spelling of 766161772 in words is "seven hundred sixty-six million, one hundred sixty-one thousand, seven hundred seventy-two".