20002400455 has 16 divisors (see below), whose sum is σ = 25100881344. Its totient is φ = 15272942080.

The previous prime is 20002400443. The next prime is 20002400459. The reversal of 20002400455 is 55400420002.

It is not a de Polignac number, because 20002400455 - 2²¹ = 20000303303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20002400459) 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, 135634 + ... + 241663.

It is an arithmetic number, because the mean of its divisors is an integer number (1568805084).

Almost surely, 2^20002400455 is an apocalyptic number.

20002400455 is a deficient number, since it is larger than the sum of its proper divisors (5098480889).

20002400455 is a wasteful number, since it uses less digits than its factorization.

20002400455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377786.

The product of its (nonzero) digits is 1600, while the sum is 22.

Adding to 20002400455 its reverse (55400420002), we get a palindrome (75402820457).

The spelling of 20002400455 in words is "twenty billion, two million, four hundred thousand, four hundred fifty-five".