20266526253 has 8 divisors (see below), whose sum is σ = 27364086400. Its totient is φ = 13339991808.

The previous prime is 20266526239. The next prime is 20266526299. The reversal of 20266526253 is 35262566202.

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

It is not a de Polignac number, because 20266526253 - 2²⁰ = 20265477677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20266526213) 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, 42756148 + ... + 42756621.

It is an arithmetic number, because the mean of its divisors is an integer number (3420510800).

Almost surely, 2^20266526253 is an apocalyptic number.

It is an amenable number.

20266526253 is a deficient number, since it is larger than the sum of its proper divisors (7097560147).

20266526253 is an equidigital number, since it uses as much as digits as its factorization.

20266526253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85512851.

The product of its (nonzero) digits is 259200, while the sum is 39.

The spelling of 20266526253 in words is "twenty billion, two hundred sixty-six million, five hundred twenty-six thousand, two hundred fifty-three".