155404164 has 24 divisors (see below), whose sum is σ = 362940480. Its totient is φ = 51754144.

The previous prime is 155404163. The next prime is 155404177. The reversal of 155404164 is 461404551.

It is not an unprimeable number, because it can be changed into a prime (155404163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9382 + ... + 19970.

It is an arithmetic number, because the mean of its divisors is an integer number (15122520).

Almost surely, 2^155404164 is an apocalyptic number.

It is an amenable number.

155404164 is an abundant number, since it is smaller than the sum of its proper divisors (207536316).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

155404164 is a wasteful number, since it uses less digits than its factorization.

155404164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11819 (or 11817 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

The square root of 155404164 is about 12466.1206475792. The cubic root of 155404164 is about 537.6350209922.

The spelling of 155404164 in words is "one hundred fifty-five million, four hundred four thousand, one hundred sixty-four".