18150215541 has 32 divisors (see below), whose sum is σ = 24903548928. Its totient is φ = 11753501760.

The previous prime is 18150215527. The next prime is 18150215543. The reversal of 18150215541 is 14551205181.

It is not a de Polignac number, because 18150215541 - 2¹⁰ = 18150214517 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18150215543) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18314556 + ... + 18315546.

It is an arithmetic number, because the mean of its divisors is an integer number (778235904).

Almost surely, 2^18150215541 is an apocalyptic number.

It is an amenable number.

18150215541 is a deficient number, since it is larger than the sum of its proper divisors (6753333387).

18150215541 is a wasteful number, since it uses less digits than its factorization.

18150215541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2081.

The product of its (nonzero) digits is 8000, while the sum is 33.

The spelling of 18150215541 in words is "eighteen billion, one hundred fifty million, two hundred fifteen thousand, five hundred forty-one".