120015553144543 has 4 divisors (see below), whose sum is σ = 137160632165200. Its totient is φ = 102870474123888.

The previous prime is 120015553144517. The next prime is 120015553144547. The reversal of 120015553144543 is 345441355510021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120015553144543 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 120015553144543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120015553144547) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8572539510318 + ... + 8572539510331.

It is an arithmetic number, because the mean of its divisors is an integer number (34290158041300).

Almost surely, 2^{120015553144543} is an apocalyptic number.

120015553144543 is a deficient number, since it is larger than the sum of its proper divisors (17145079020657).

120015553144543 is an equidigital number, since it uses as much as digits as its factorization.

120015553144543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17145079020656.

The product of its (nonzero) digits is 720000, while the sum is 43.

The spelling of 120015553144543 in words is "one hundred twenty trillion, fifteen billion, five hundred fifty-three million, one hundred forty-four thousand, five hundred forty-three".