4171320515556 has 48 divisors (see below), whose sum is σ = 10821947371200. Its totient is φ = 1389487110336.

The previous prime is 4171320515501. The next prime is 4171320515597. The reversal of 4171320515556 is 6555150231714.

4171320515556 is a `hidden beast` number, since 4 + 1 + 71 + 3 + 20 + 5 + 1 + 5 + 556 = 666.

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, 13078665 + ... + 13393808.

It is an arithmetic number, because the mean of its divisors is an integer number (225457236900).

Almost surely, 2^{4171320515556} is an apocalyptic number.

It is an amenable number.

4171320515556 is an abundant number, since it is smaller than the sum of its proper divisors (6650626855644).

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

4171320515556 is a wasteful number, since it uses less digits than its factorization.

4171320515556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26473945 (or 26473937 counting only the distinct ones).

The product of its (nonzero) digits is 630000, while the sum is 45.

The spelling of 4171320515556 in words is "four trillion, one hundred seventy-one billion, three hundred twenty million, five hundred fifteen thousand, five hundred fifty-six".