18150997032943 has 64 divisors (see below), whose sum is σ = 19697632254720. Its totient is φ = 16685432045568.

The previous prime is 18150997032907. The next prime is 18150997032979. The reversal of 18150997032943 is 34923079905181.

It is an interprime number because it is at equal distance from previous prime (18150997032907) and next prime (18150997032979).

It is a cyclic number.

It is not a de Polignac number, because 18150997032943 - 2⁴¹ = 15951973777391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18150997032743) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5381260405 + ... + 5381263777.

It is an arithmetic number, because the mean of its divisors is an integer number (307775503980).

Almost surely, 2^{18150997032943} is an apocalyptic number.

18150997032943 is a deficient number, since it is larger than the sum of its proper divisors (1546635221777).

18150997032943 is a wasteful number, since it uses less digits than its factorization.

18150997032943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3988.

The product of its (nonzero) digits is 14696640, while the sum is 61.

The spelling of 18150997032943 in words is "eighteen trillion, one hundred fifty billion, nine hundred ninety-seven million, thirty-two thousand, nine hundred forty-three".