164344077 has 6 divisors (see below), whose sum is σ = 237385902. Its totient is φ = 109562712.

The previous prime is 164344013. The next prime is 164344079. The reversal of 164344077 is 770443461.

It is a happy number.

164344077 is a `hidden beast` number, since 1 + 643 + 4 + 4 + 0 + 7 + 7 = 666.

164344077 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 86657481 + 77686596 = 9309^2 + 8814^2 .

It is not a de Polignac number, because 164344077 - 2⁶ = 164344013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164344079) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9130218 + ... + 9130235.

It is an arithmetic number, because the mean of its divisors is an integer number (39564317).

Almost surely, 2^164344077 is an apocalyptic number.

It is an amenable number.

164344077 is a deficient number, since it is larger than the sum of its proper divisors (73041825).

164344077 is a wasteful number, since it uses less digits than its factorization.

164344077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18260459 (or 18260456 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 36.

The square root of 164344077 is about 12819.6753859058. The cubic root of 164344077 is about 547.7528999892.

The spelling of 164344077 in words is "one hundred sixty-four million, three hundred forty-four thousand, seventy-seven".