155655212130 has 96 divisors (see below), whose sum is σ = 444671398080. Its totient is φ = 37463091840.

The previous prime is 155655212123. The next prime is 155655212171. The reversal of 155655212130 is 31212556551.

155655212130 is a `hidden beast` number, since 1 + 5 + 56 + 552 + 1 + 21 + 30 = 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, 427957 + ... + 703176.

It is an arithmetic number, because the mean of its divisors is an integer number (4631993730).

Almost surely, 2^155655212130 is an apocalyptic number.

155655212130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

155655212130 is an abundant number, since it is smaller than the sum of its proper divisors (289016185950).

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

155655212130 is a wasteful number, since it uses less digits than its factorization.

155655212130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1131296 (or 1131293 counting only the distinct ones).

The product of its (nonzero) digits is 45000, while the sum is 36.

Adding to 155655212130 its reverse (31212556551), we get a palindrome (186867768681).

The spelling of 155655212130 in words is "one hundred fifty-five billion, six hundred fifty-five million, two hundred twelve thousand, one hundred thirty".