20436180218034 has 64 divisors (see below), whose sum is σ = 48188865478656. Its totient is φ = 5655624410304.

The previous prime is 20436180218009. The next prime is 20436180218063. The reversal of 20436180218034 is 43081208163402.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29139322 + ... + 29832405.

It is an arithmetic number, because the mean of its divisors is an integer number (752951023104).

Almost surely, 2^{20436180218034} is an apocalyptic number.

20436180218034 is an abundant number, since it is smaller than the sum of its proper divisors (27752685260622).

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

20436180218034 is a wasteful number, since it uses less digits than its factorization.

20436180218034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58971999.

The product of its (nonzero) digits is 221184, while the sum is 42.

The spelling of 20436180218034 in words is "twenty trillion, four hundred thirty-six billion, one hundred eighty million, two hundred eighteen thousand, thirty-four".