164881766 has 24 divisors (see below), whose sum is σ = 288199296. Its totient is φ = 70541520.

The previous prime is 164881763. The next prime is 164881771. The reversal of 164881766 is 667188461.

164881766 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 164881766.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164881763) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 77051 + ... + 79161.

It is an arithmetic number, because the mean of its divisors is an integer number (12008304).

Almost surely, 2^164881766 is an apocalyptic number.

164881766 is a deficient number, since it is larger than the sum of its proper divisors (123317530).

164881766 is a wasteful number, since it uses less digits than its factorization.

164881766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2924 (or 2917 counting only the distinct ones).

The product of its digits is 387072, while the sum is 47.

The square root of 164881766 is about 12840.6295017028. The cubic root of 164881766 is about 548.3496157330.

The spelling of 164881766 in words is "one hundred sixty-four million, eight hundred eighty-one thousand, seven hundred sixty-six".