20802398337 has 12 divisors (see below), whose sum is σ = 34340467200. Its totient is φ = 11887084728.

The previous prime is 20802398333. The next prime is 20802398359. The reversal of 20802398337 is 73389320802.

It is a happy number.

20802398337 is a `hidden beast` number, since 2 + 0 + 80 + 239 + 8 + 337 = 666.

It is not a de Polignac number, because 20802398337 - 2² = 20802398333 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20802398292 and 20802398301.

It is not an unprimeable number, because it can be changed into a prime (20802398333) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 165098337 + ... + 165098462.

It is an arithmetic number, because the mean of its divisors is an integer number (2861705600).

Almost surely, 2^20802398337 is an apocalyptic number.

It is an amenable number.

20802398337 is a deficient number, since it is larger than the sum of its proper divisors (13538068863).

20802398337 is a wasteful number, since it uses less digits than its factorization.

20802398337 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330196812 (or 330196809 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 45.

The spelling of 20802398337 in words is "twenty billion, eight hundred two million, three hundred ninety-eight thousand, three hundred thirty-seven".