2112156333563 has 8 divisors (see below), whose sum is σ = 2112983346960. Its totient is φ = 2111329461760.

The previous prime is 2112156333509. The next prime is 2112156333583. The reversal of 2112156333563 is 3653336512112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2112156333563 - 2²⁶ = 2112089224699 is a prime.

It is a super-2 number, since 2×2112156333563² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2112156333563.

It is not an unprimeable number, because it can be changed into a prime (2112156333583) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37078343 + ... + 37135263.

It is an arithmetic number, because the mean of its divisors is an integer number (264122918370).

Almost surely, 2^{2112156333563} is an apocalyptic number.

2112156333563 is a deficient number, since it is larger than the sum of its proper divisors (827013397).

2112156333563 is a wasteful number, since it uses less digits than its factorization.

2112156333563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70797.

The product of its digits is 291600, while the sum is 41.

The spelling of 2112156333563 in words is "two trillion, one hundred twelve billion, one hundred fifty-six million, three hundred thirty-three thousand, five hundred sixty-three".