20016040734 has 32 divisors (see below), whose sum is σ = 45029237280. Its totient is φ = 6672012120.

The previous prime is 20016040691. The next prime is 20016040763. The reversal of 20016040734 is 43704061002.

20016040734 is a `hidden beast` number, since 20 + 0 + 1 + 604 + 0 + 7 + 34 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20016040698 and 20016040707.

It is a congruent 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, 2283697 + ... + 2292444.

It is an arithmetic number, because the mean of its divisors is an integer number (1407163665).

Almost surely, 2^20016040734 is an apocalyptic number.

20016040734 is an abundant number, since it is smaller than the sum of its proper divisors (25013196546).

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

20016040734 is an frugal number, since it uses more digits than its factorization.

20016040734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4576164 (or 4576146 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The spelling of 20016040734 in words is "twenty billion, sixteen million, forty thousand, seven hundred thirty-four".