20368821614 has 4 divisors (see below), whose sum is σ = 30553232424. Its totient is φ = 10184410806.

The previous prime is 20368821589. The next prime is 20368821619. The reversal of 20368821614 is 41612886302.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20368821619) 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 as a sum of consecutive naturals, namely, 5092205402 + ... + 5092205405.

It is an arithmetic number, because the mean of its divisors is an integer number (7638308106).

Almost surely, 2^20368821614 is an apocalyptic number.

20368821614 is a deficient number, since it is larger than the sum of its proper divisors (10184410810).

20368821614 is a wasteful number, since it uses less digits than its factorization.

20368821614 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10184410809.

The product of its (nonzero) digits is 110592, while the sum is 41.

The spelling of 20368821614 in words is "twenty billion, three hundred sixty-eight million, eight hundred twenty-one thousand, six hundred fourteen".