20260105653 has 4 divisors (see below), whose sum is σ = 27013474208. Its totient is φ = 13506737100.

The previous prime is 20260105643. The next prime is 20260105687. The reversal of 20260105653 is 35650106202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 20260105653 - 2⁹ = 20260105141 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20260105653.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20260105603) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3376684273 + ... + 3376684278.

It is an arithmetic number, because the mean of its divisors is an integer number (6753368552).

Almost surely, 2^20260105653 is an apocalyptic number.

It is an amenable number.

20260105653 is a deficient number, since it is larger than the sum of its proper divisors (6753368555).

20260105653 is an equidigital number, since it uses as much as digits as its factorization.

20260105653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6753368554.

The product of its (nonzero) digits is 10800, while the sum is 30.

The spelling of 20260105653 in words is "twenty billion, two hundred sixty million, one hundred five thousand, six hundred fifty-three".