20413154464218 has 32 divisors (see below), whose sum is σ = 47334850934400. Its totient is φ = 6508542002688.

The previous prime is 20413154464217. The next prime is 20413154464247. The reversal of 20413154464218 is 81246445131402.

20413154464218 is a `hidden beast` number, since 2 + 0 + 4 + 1 + 31 + 544 + 64 + 2 + 18 = 666.

It is not an unprimeable number, because it can be changed into a prime (20413154464217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8217854823 + ... + 8217857306.

It is an arithmetic number, because the mean of its divisors is an integer number (1479214091700).

Almost surely, 2^{20413154464218} is an apocalyptic number.

20413154464218 is an abundant number, since it is smaller than the sum of its proper divisors (26921696470182).

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

20413154464218 is a wasteful number, since it uses less digits than its factorization.

20413154464218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16435712163 (or 16435712157 counting only the distinct ones).

The product of its (nonzero) digits is 737280, while the sum is 45.

The spelling of 20413154464218 in words is "twenty trillion, four hundred thirteen billion, one hundred fifty-four million, four hundred sixty-four thousand, two hundred eighteen".