155114421252 has 96 divisors (see below), whose sum is σ = 435785978880. Its totient is φ = 41949498240.

The previous prime is 155114421239. The next prime is 155114421269. The reversal of 155114421252 is 252124411551.

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, 1827418 + ... + 1910414.

It is an arithmetic number, because the mean of its divisors is an integer number (4539437280).

Almost surely, 2^155114421252 is an apocalyptic number.

155114421252 is a gapful number since it is divisible by the number (12) 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 155114421252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (217892989440).

155114421252 is an abundant number, since it is smaller than the sum of its proper divisors (280671557628).

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

155114421252 is a wasteful number, since it uses less digits than its factorization.

155114421252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84201 (or 84199 counting only the distinct ones).

The product of its digits is 16000, while the sum is 33.

The spelling of 155114421252 in words is "one hundred fifty-five billion, one hundred fourteen million, four hundred twenty-one thousand, two hundred fifty-two".