220401355304418 has 16 divisors (see below), whose sum is σ = 440860887116640. Its totient is φ = 73457422350176.

The previous prime is 220401355304401. The next prime is 220401355304419. The reversal of 220401355304418 is 814403553104022.

It is a happy number.

220401355304418 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 220401355304418.

It is not an unprimeable number, because it can be changed into a prime (220401355304419) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2423971908 + ... + 2424062831.

It is an arithmetic number, because the mean of its divisors is an integer number (27553805444790).

Almost surely, 2^{220401355304418} is an apocalyptic number.

220401355304418 is an abundant number, since it is smaller than the sum of its proper divisors (220459531812222).

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

220401355304418 is a wasteful number, since it uses less digits than its factorization.

220401355304418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4848042321.

The product of its (nonzero) digits is 460800, while the sum is 42.

The spelling of 220401355304418 in words is "two hundred twenty trillion, four hundred one billion, three hundred fifty-five million, three hundred four thousand, four hundred eighteen".