671505130140 has 48 divisors (see below), whose sum is σ = 2024846240928. Its totient is φ = 165293570304.

The previous prime is 671505130133. The next prime is 671505130271. The reversal of 671505130140 is 41031505176.

It is a congruent 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, 430451227 + ... + 430452786.

It is an arithmetic number, because the mean of its divisors is an integer number (42184296686).

Almost surely, 2^671505130140 is an apocalyptic number.

671505130140 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

671505130140 is an abundant number, since it is smaller than the sum of its proper divisors (1353341110788).

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

671505130140 is a wasteful number, since it uses less digits than its factorization.

671505130140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 860904038 (or 860904036 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 33.

The spelling of 671505130140 in words is "six hundred seventy-one billion, five hundred five million, one hundred thirty thousand, one hundred forty".