2171155871130 has 32 divisors (see below), whose sum is σ = 5210919907200. Its totient is φ = 578958697152.

The previous prime is 2171155871113. The next prime is 2171155871149. The reversal of 2171155871130 is 311785511712.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97251 + ... + 2086089.

It is an arithmetic number, because the mean of its divisors is an integer number (162841247100).

Almost surely, 2^{2171155871130} is an apocalyptic number.

2171155871130 is an abundant number, since it is smaller than the sum of its proper divisors (3039764036070).

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

2171155871130 is a wasteful number, since it uses less digits than its factorization.

2171155871130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2025238.

The product of its (nonzero) digits is 58800, while the sum is 42.

The spelling of 2171155871130 in words is "two trillion, one hundred seventy-one billion, one hundred fifty-five million, eight hundred seventy-one thousand, one hundred thirty".