155542323354 has 64 divisors (see below), whose sum is σ = 345930352128. Its totient is φ = 46223028800.

The previous prime is 155542323239. The next prime is 155542323373. The reversal of 155542323354 is 453323245551.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8424457 + ... + 8442899.

It is an arithmetic number, because the mean of its divisors is an integer number (5405161752).

Almost surely, 2^155542323354 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 155542323354, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (172965176064).

155542323354 is an abundant number, since it is smaller than the sum of its proper divisors (190388028774).

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

155542323354 is a wasteful number, since it uses less digits than its factorization.

155542323354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20923.

The product of its digits is 1080000, while the sum is 42.

The spelling of 155542323354 in words is "one hundred fifty-five billion, five hundred forty-two million, three hundred twenty-three thousand, three hundred fifty-four".