20404540514154 has 32 divisors (see below), whose sum is σ = 42818656293504. Its totient is φ = 6469851896640.

The previous prime is 20404540514117. The next prime is 20404540514227. The reversal of 20404540514154 is 45141504540402.

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, 408425269 + ... + 408475224.

It is an arithmetic number, because the mean of its divisors is an integer number (1338083009172).

Almost surely, 2^{20404540514154} is an apocalyptic number.

20404540514154 is an abundant number, since it is smaller than the sum of its proper divisors (22414115779350).

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

20404540514154 is a wasteful number, since it uses less digits than its factorization.

20404540514154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 816900702.

The product of its (nonzero) digits is 256000, while the sum is 39.

The spelling of 20404540514154 in words is "twenty trillion, four hundred four billion, five hundred forty million, five hundred fourteen thousand, one hundred fifty-four".