156591105845 has 16 divisors (see below), whose sum is σ = 200659576320. Its totient is φ = 117051412800.

The previous prime is 156591105799. The next prime is 156591105871. The reversal of 156591105845 is 548501195651.

It is not a de Polignac number, because 156591105845 - 2¹⁰ = 156591104821 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 156591105793 and 156591105802.

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, 17413871 + ... + 17422860.

It is an arithmetic number, because the mean of its divisors is an integer number (12541223520).

Almost surely, 2^156591105845 is an apocalyptic number.

It is an amenable number.

156591105845 is a deficient number, since it is larger than the sum of its proper divisors (44068470475).

156591105845 is a wasteful number, since it uses less digits than its factorization.

156591105845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34836796.

The product of its (nonzero) digits is 1080000, while the sum is 50.

The spelling of 156591105845 in words is "one hundred fifty-six billion, five hundred ninety-one million, one hundred five thousand, eight hundred forty-five".