20996019254 has 8 divisors (see below), whose sum is σ = 35993175888. Its totient is φ = 8998293960.

The previous prime is 20996019139. The next prime is 20996019259. The reversal of 20996019254 is 45291069902.

It is a happy number.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20996019199 and 20996019208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20996019259) 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 3 ways as a sum of consecutive naturals, for example, 749857817 + ... + 749857844.

It is an arithmetic number, because the mean of its divisors is an integer number (4499146986).

Almost surely, 2^20996019254 is an apocalyptic number.

20996019254 is a deficient number, since it is larger than the sum of its proper divisors (14997156634).

20996019254 is a wasteful number, since it uses less digits than its factorization.

20996019254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1499715670.

The product of its (nonzero) digits is 349920, while the sum is 47.

The spelling of 20996019254 in words is "twenty billion, nine hundred ninety-six million, nineteen thousand, two hundred fifty-four".