155632064 has 112 divisors (see below), whose sum is σ = 372953280. Its totient is φ = 63037440.

The previous prime is 155632063. The next prime is 155632069. The reversal of 155632064 is 460236551.

It is a tau number, because it is divible by the number of its divisors (112).

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a self number, because there is not a number n which added to its sum of digits gives 155632064.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155632063) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 679502 + ... + 679730.

It is an arithmetic number, because the mean of its divisors is an integer number (3329940).

Almost surely, 2^155632064 is an apocalyptic number.

155632064 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 155632064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (186476640).

155632064 is an abundant number, since it is smaller than the sum of its proper divisors (217321216).

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

155632064 is a wasteful number, since it uses less digits than its factorization.

155632064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326 (or 316 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 155632064 is about 12475.2580734829. The cubic root of 155632064 is about 537.8977063061.

The spelling of 155632064 in words is "one hundred fifty-five million, six hundred thirty-two thousand, sixty-four".