155715120552210 has 64 divisors (see below), whose sum is σ = 385882931073024. Its totient is φ = 40172955825600.

The previous prime is 155715120552209. The next prime is 155715120552223. The reversal of 155715120552210 is 12255021517551.

It is a happy 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, 20922736 + ... + 27371355.

It is an arithmetic number, because the mean of its divisors is an integer number (6029420798016).

Almost surely, 2^{155715120552210} is an apocalyptic number.

155715120552210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

155715120552210 is an abundant number, since it is smaller than the sum of its proper divisors (230167810520814).

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

155715120552210 is a wasteful number, since it uses less digits than its factorization.

155715120552210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48297599.

The product of its (nonzero) digits is 175000, while the sum is 42.

The spelling of 155715120552210 in words is "one hundred fifty-five trillion, seven hundred fifteen billion, one hundred twenty million, five hundred fifty-two thousand, two hundred ten".