18018016294 has 8 divisors (see below), whose sum is σ = 27029986920. Its totient is φ = 9008020656.

The previous prime is 18018016243. The next prime is 18018016297. The reversal of 18018016294 is 49261081081.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×18018016294² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18018016297) 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, 470724 + ... + 507559.

It is an arithmetic number, because the mean of its divisors is an integer number (3378748365).

Almost surely, 2^18018016294 is an apocalyptic number.

18018016294 is a deficient number, since it is larger than the sum of its proper divisors (9011970626).

18018016294 is an equidigital number, since it uses as much as digits as its factorization.

18018016294 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 987494.

The product of its (nonzero) digits is 27648, while the sum is 40.

The spelling of 18018016294 in words is "eighteen billion, eighteen million, sixteen thousand, two hundred ninety-four".