20340440099 has 8 divisors (see below), whose sum is σ = 23996095488. Its totient is φ = 16872254280.

The previous prime is 20340440083. The next prime is 20340440173. The reversal of 20340440099 is 99004404302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20340440099 - 2⁴ = 20340440083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20340440059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46867157 + ... + 46867590.

It is an arithmetic number, because the mean of its divisors is an integer number (2999511936).

Almost surely, 2^20340440099 is an apocalyptic number.

20340440099 is a deficient number, since it is larger than the sum of its proper divisors (3655655389).

20340440099 is an equidigital number, since it uses as much as digits as its factorization.

20340440099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93734785.

The product of its (nonzero) digits is 31104, while the sum is 35.

The spelling of 20340440099 in words is "twenty billion, three hundred forty million, four hundred forty thousand, ninety-nine".