2120115243558 has 16 divisors (see below), whose sum is σ = 4566402063216. Its totient is φ = 652343151840.

The previous prime is 2120115243553. The next prime is 2120115243569. The reversal of 2120115243558 is 8553425110212.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120115243553) 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, 13590482253 + ... + 13590482408.

It is an arithmetic number, because the mean of its divisors is an integer number (285400128951).

Almost surely, 2^{2120115243558} is an apocalyptic number.

2120115243558 is an abundant number, since it is smaller than the sum of its proper divisors (2446286819658).

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

2120115243558 is a wasteful number, since it uses less digits than its factorization.

2120115243558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27180964679.

The product of its (nonzero) digits is 96000, while the sum is 39.

The spelling of 2120115243558 in words is "two trillion, one hundred twenty billion, one hundred fifteen million, two hundred forty-three thousand, five hundred fifty-eight".