15671660556120 has 256 divisors, whose sum is σ = 48337237831680. Its totient is φ = 4062339993600.

The previous prime is 15671660556049. The next prime is 15671660556131. The reversal of 15671660556120 is 2165506617651.

15671660556120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2352745590 + ... + 2352752250.

It is an arithmetic number, because the mean of its divisors is an integer number (188817335280).

Almost surely, 2^{15671660556120} is an apocalyptic number.

15671660556120 is a gapful number since it is divisible by the number (10) 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 15671660556120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24168618915840).

15671660556120 is an abundant number, since it is smaller than the sum of its proper divisors (32665577275560).

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

15671660556120 is a wasteful number, since it uses less digits than its factorization.

15671660556120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8386 (or 8382 counting only the distinct ones).

The product of its (nonzero) digits is 2268000, while the sum is 51.

The spelling of 15671660556120 in words is "fifteen trillion, six hundred seventy-one billion, six hundred sixty million, five hundred fifty-six thousand, one hundred twenty".