20261272755226 has 8 divisors (see below), whose sum is σ = 30819964191264. Its totient is φ = 9987951358140.

The previous prime is 20261272755137. The next prime is 20261272755233. The reversal of 20261272755226 is 62255727216202.

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

It is a super-2 number, since 2×20261272755226² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20261272755226.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71342509560 + ... + 71342509843.

It is an arithmetic number, because the mean of its divisors is an integer number (3852495523908).

Almost surely, 2^{20261272755226} is an apocalyptic number.

20261272755226 is a deficient number, since it is larger than the sum of its proper divisors (10558691436038).

20261272755226 is a wasteful number, since it uses less digits than its factorization.

20261272755226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142685019476.

The product of its (nonzero) digits is 2822400, while the sum is 49.

The spelling of 20261272755226 in words is "twenty trillion, two hundred sixty-one billion, two hundred seventy-two million, seven hundred fifty-five thousand, two hundred twenty-six".