171020340436 has 24 divisors (see below), whose sum is σ = 328655597760. Its totient is φ = 77221704000.

The previous prime is 171020340389. The next prime is 171020340443. The reversal of 171020340436 is 634043020171.

It is a junction number, because it is equal to n+sod(n) for n = 171020340398 and 171020340407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12863641 + ... + 12876928.

It is an arithmetic number, because the mean of its divisors is an integer number (13693983240).

Almost surely, 2^171020340436 is an apocalyptic number.

It is an amenable number.

171020340436 is a deficient number, since it is larger than the sum of its proper divisors (157635257324).

171020340436 is a wasteful number, since it uses less digits than its factorization.

171020340436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25740735 (or 25740733 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 31.

The spelling of 171020340436 in words is "one hundred seventy-one billion, twenty million, three hundred forty thousand, four hundred thirty-six".