20354440506265 has 8 divisors (see below), whose sum is σ = 25710872218560. Its totient is φ = 15426523330992.

The previous prime is 20354440506247. The next prime is 20354440506289. The reversal of 20354440506265 is 56260504445302.

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

It is a cyclic number.

It is not a de Polignac number, because 20354440506265 - 2⁵ = 20354440506233 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107128634149 + ... + 107128634338.

It is an arithmetic number, because the mean of its divisors is an integer number (3213859027320).

Almost surely, 2^{20354440506265} is an apocalyptic number.

It is an amenable number.

20354440506265 is a deficient number, since it is larger than the sum of its proper divisors (5356431712295).

20354440506265 is a wasteful number, since it uses less digits than its factorization.

20354440506265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214257268511.

The product of its (nonzero) digits is 3456000, while the sum is 46.

The spelling of 20354440506265 in words is "twenty trillion, three hundred fifty-four billion, four hundred forty million, five hundred six thousand, two hundred sixty-five".