18020155340298 has 32 divisors (see below), whose sum is σ = 37205127659520. Its totient is φ = 5812605474480.

The previous prime is 18020155340279. The next prime is 18020155340347. The reversal of 18020155340298 is 89204355102081.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 226711 + ... + 6007637.

It is an arithmetic number, because the mean of its divisors is an integer number (1162660239360).

Almost surely, 2^{18020155340298} is an apocalyptic number.

18020155340298 is an abundant number, since it is smaller than the sum of its proper divisors (19184972319222).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18020155340298 is a wasteful number, since it uses less digits than its factorization.

18020155340298 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5797722.

The product of its (nonzero) digits is 691200, while the sum is 48.

The spelling of 18020155340298 in words is "eighteen trillion, twenty billion, one hundred fifty-five million, three hundred forty thousand, two hundred ninety-eight".