20015455346363 has 16 divisors (see below), whose sum is σ = 20263904344320. Its totient is φ = 19768581036000.

The previous prime is 20015455346357. The next prime is 20015455346371. The reversal of 20015455346363 is 36364355451002.

It is a cyclic number.

It is not a de Polignac number, because 20015455346363 - 2²⁶ = 20015388237499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20015455346323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 124193528 + ... + 124354586.

It is an arithmetic number, because the mean of its divisors is an integer number (1266494021520).

Almost surely, 2^{20015455346363} is an apocalyptic number.

20015455346363 is a deficient number, since it is larger than the sum of its proper divisors (248448997957).

20015455346363 is a wasteful number, since it uses less digits than its factorization.

20015455346363 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165938.

The product of its (nonzero) digits is 3888000, while the sum is 47.

The spelling of 20015455346363 in words is "twenty trillion, fifteen billion, four hundred fifty-five million, three hundred forty-six thousand, three hundred sixty-three".