401155600218 has 32 divisors (see below), whose sum is σ = 807704796096. Its totient is φ = 132821726208.

The previous prime is 401155600207. The next prime is 401155600231. The reversal of 401155600218 is 812006551104.

It is a Curzon number.

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, 490921 + ... + 1021427.

It is an arithmetic number, because the mean of its divisors is an integer number (25240774878).

Almost surely, 2^401155600218 is an apocalyptic number.

401155600218 is an abundant number, since it is smaller than the sum of its proper divisors (406549195878).

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

401155600218 is a wasteful number, since it uses less digits than its factorization.

401155600218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 531358.

The product of its (nonzero) digits is 9600, while the sum is 33.

The spelling of 401155600218 in words is "four hundred one billion, one hundred fifty-five million, six hundred thousand, two hundred eighteen".