20335368501 has 24 divisors (see below), whose sum is σ = 33590553984. Its totient is φ = 11612921760.

The previous prime is 20335368491. The next prime is 20335368509. The reversal of 20335368501 is 10586353302.

It is not a de Polignac number, because 20335368501 - 2¹⁰ = 20335367477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20335368509) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 811 + ... + 201671.

It is an arithmetic number, because the mean of its divisors is an integer number (1399606416).

Almost surely, 2^20335368501 is an apocalyptic number.

20335368501 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

20335368501 is a deficient number, since it is larger than the sum of its proper divisors (13255185483).

20335368501 is a wasteful number, since it uses less digits than its factorization.

20335368501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202481 (or 202478 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The spelling of 20335368501 in words is "twenty billion, three hundred thirty-five million, three hundred sixty-eight thousand, five hundred one".