18162640142 has 16 divisors (see below), whose sum is σ = 28158519840. Its totient is φ = 8779593888.

The previous prime is 18162640129. The next prime is 18162640157. The reversal of 18162640142 is 24104626181.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 770042 + ... + 793277.

It is an arithmetic number, because the mean of its divisors is an integer number (1759907490).

Almost surely, 2^18162640142 is an apocalyptic number.

18162640142 is a deficient number, since it is larger than the sum of its proper divisors (9995879698).

18162640142 is a wasteful number, since it uses less digits than its factorization.

18162640142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1563515.

The product of its (nonzero) digits is 18432, while the sum is 35.

The spelling of 18162640142 in words is "eighteen billion, one hundred sixty-two million, six hundred forty thousand, one hundred forty-two".