20424432995 has 16 divisors (see below), whose sum is σ = 25974691200. Its totient is φ = 15364383744.

The previous prime is 20424432991. The next prime is 20424433039. The reversal of 20424432995 is 59923442402.

It is a cyclic number.

It is not a de Polignac number, because 20424432995 - 2² = 20424432991 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20424432991) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15170 + ... + 202679.

It is an arithmetic number, because the mean of its divisors is an integer number (1623418200).

Almost surely, 2^20424432995 is an apocalyptic number.

20424432995 is a deficient number, since it is larger than the sum of its proper divisors (5550258205).

20424432995 is a wasteful number, since it uses less digits than its factorization.

20424432995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218974.

The product of its (nonzero) digits is 622080, while the sum is 44.

The spelling of 20424432995 in words is "twenty billion, four hundred twenty-four million, four hundred thirty-two thousand, nine hundred ninety-five".