20266735893 has 8 divisors (see below), whose sum is σ = 27029176608. Its totient is φ = 13507726224.

The previous prime is 20266735849. The next prime is 20266735901. The reversal of 20266735893 is 39853766202.

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

It is not a de Polignac number, because 20266735893 - 2⁹ = 20266735381 is a prime.

It is a super-2 number, since 2×20266735893² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20266735493) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 843946 + ... + 867627.

It is an arithmetic number, because the mean of its divisors is an integer number (3378647076).

Almost surely, 2^20266735893 is an apocalyptic number.

It is an amenable number.

20266735893 is a deficient number, since it is larger than the sum of its proper divisors (6762440715).

20266735893 is a wasteful number, since it uses less digits than its factorization.

20266735893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1715523.

The product of its (nonzero) digits is 3265920, while the sum is 51.

The spelling of 20266735893 in words is "twenty billion, two hundred sixty-six million, seven hundred thirty-five thousand, eight hundred ninety-three".