166782263164 has 12 divisors (see below), whose sum is σ = 318402502488. Its totient is φ = 75810119600.

The previous prime is 166782263161. The next prime is 166782263189. The reversal of 166782263164 is 461362287661.

It is a super-2 number, since 2×166782263164² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166782263161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1895252947 + ... + 1895253034.

It is an arithmetic number, because the mean of its divisors is an integer number (26533541874).

Almost surely, 2^166782263164 is an apocalyptic number.

It is an amenable number.

166782263164 is a deficient number, since it is larger than the sum of its proper divisors (151620239324).

166782263164 is a wasteful number, since it uses less digits than its factorization.

166782263164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3790505996 (or 3790505994 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 52.

The spelling of 166782263164 in words is "one hundred sixty-six billion, seven hundred eighty-two million, two hundred sixty-three thousand, one hundred sixty-four".