155459664 has 60 divisors (see below), whose sum is σ = 440346816. Its totient is φ = 51191616.

The previous prime is 155459639. The next prime is 155459671. The reversal of 155459664 is 466954551.

155459664 is a `hidden beast` number, since 1 + 5 + 54 + 596 + 6 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5449 + ... + 18455.

Almost surely, 2^155459664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 155459664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (220173408).

155459664 is an abundant number, since it is smaller than the sum of its proper divisors (284887152).

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

155459664 is a wasteful number, since it uses less digits than its factorization.

155459664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13104 (or 13095 counting only the distinct ones).

The product of its digits is 648000, while the sum is 45.

The square root of 155459664 is about 12468.3464821924. The cubic root of 155459664 is about 537.6990158288.

The spelling of 155459664 in words is "one hundred fifty-five million, four hundred fifty-nine thousand, six hundred sixty-four".