20265106726331 has 16 divisors (see below), whose sum is σ = 21312177110784. Its totient is φ = 19232273120544.

The previous prime is 20265106726313. The next prime is 20265106726441. The reversal of 20265106726331 is 13362760156202.

It is a cyclic number.

It is not a de Polignac number, because 20265106726331 - 2²⁶ = 20265039617467 is a prime.

It is a super-2 number, since 2×20265106726331² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20265106726301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2403656 + ... + 6804981.

It is an arithmetic number, because the mean of its divisors is an integer number (1332011069424).

Almost surely, 2^{20265106726331} is an apocalyptic number.

20265106726331 is a deficient number, since it is larger than the sum of its proper divisors (1047070384453).

20265106726331 is a wasteful number, since it uses less digits than its factorization.

20265106726331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9209410.

The product of its (nonzero) digits is 544320, while the sum is 44.

The spelling of 20265106726331 in words is "twenty trillion, two hundred sixty-five billion, one hundred six million, seven hundred twenty-six thousand, three hundred thirty-one".