20433401299 has 4 divisors (see below), whose sum is σ = 20446165800. Its totient is φ = 20420636800.

The previous prime is 20433401159. The next prime is 20433401327. The reversal of 20433401299 is 99210433402.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20433401299 - 2¹⁷ = 20433270227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20433401099) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6379849 + ... + 6383050.

It is an arithmetic number, because the mean of its divisors is an integer number (5111541450).

Almost surely, 2^20433401299 is an apocalyptic number.

20433401299 is a deficient number, since it is larger than the sum of its proper divisors (12764501).

20433401299 is a wasteful number, since it uses less digits than its factorization.

20433401299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12764500.

The product of its (nonzero) digits is 46656, while the sum is 37.

The spelling of 20433401299 in words is "twenty billion, four hundred thirty-three million, four hundred one thousand, two hundred ninety-nine".