155232321354 has 96 divisors (see below), whose sum is σ = 371301278400. Its totient is φ = 46478234880.

The previous prime is 155232321317. The next prime is 155232321379. The reversal of 155232321354 is 453123232551.

155232321354 is a `hidden beast` number, since 1 + 55 + 23 + 232 + 1 + 354 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 36704512 + ... + 36708740.

It is an arithmetic number, because the mean of its divisors is an integer number (3867721650).

Almost surely, 2^155232321354 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 155232321354, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (185650639200).

155232321354 is an abundant number, since it is smaller than the sum of its proper divisors (216068957046).

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

155232321354 is a wasteful number, since it uses less digits than its factorization.

155232321354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6420 (or 6417 counting only the distinct ones).

The product of its digits is 108000, while the sum is 36.

The spelling of 155232321354 in words is "one hundred fifty-five billion, two hundred thirty-two million, three hundred twenty-one thousand, three hundred fifty-four".