20079540403 has 16 divisors (see below), whose sum is σ = 21845454400. Its totient is φ = 18345605760.

The previous prime is 20079540401. The next prime is 20079540407. The reversal of 20079540403 is 30404597002.

It is a cyclic number.

It is not a de Polignac number, because 20079540403 - 2¹ = 20079540401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20079540401) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1439818 + ... + 1453696.

It is an arithmetic number, because the mean of its divisors is an integer number (1365340900).

Almost surely, 2^20079540403 is an apocalyptic number.

20079540403 is a deficient number, since it is larger than the sum of its proper divisors (1765913997).

20079540403 is a wasteful number, since it uses less digits than its factorization.

20079540403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15022.

The product of its (nonzero) digits is 30240, while the sum is 34.

The spelling of 20079540403 in words is "twenty billion, seventy-nine million, five hundred forty thousand, four hundred three".