20072072406 has 16 divisors (see below), whose sum is σ = 40224600000. Its totient is φ = 6677281608.

The previous prime is 20072072401. The next prime is 20072072413. The reversal of 20072072406 is 60427027002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20072072401) 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, 3349056 + ... + 3355043.

It is an arithmetic number, because the mean of its divisors is an integer number (2514037500).

Almost surely, 2^20072072406 is an apocalyptic number.

20072072406 is an abundant number, since it is smaller than the sum of its proper divisors (20152527594).

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

20072072406 is a wasteful number, since it uses less digits than its factorization.

20072072406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6704603.

The product of its (nonzero) digits is 9408, while the sum is 30.

Adding to 20072072406 its reverse (60427027002), we get a palindrome (80499099408).

The spelling of 20072072406 in words is "twenty billion, seventy-two million, seventy-two thousand, four hundred six".