20364217454 has 16 divisors (see below), whose sum is σ = 35568769248. Its totient is φ = 8562851232.

The previous prime is 20364217453. The next prime is 20364217493. The reversal of 20364217454 is 45471246302.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20364217453) 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, 13721777 + ... + 13723260.

It is an arithmetic number, because the mean of its divisors is an integer number (2223048078).

Almost surely, 2^20364217454 is an apocalyptic number.

20364217454 is a deficient number, since it is larger than the sum of its proper divisors (15204551794).

20364217454 is a wasteful number, since it uses less digits than its factorization.

20364217454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27445099.

The product of its (nonzero) digits is 161280, while the sum is 38.

The spelling of 20364217454 in words is "twenty billion, three hundred sixty-four million, two hundred seventeen thousand, four hundred fifty-four".