20463355455 has 8 divisors (see below), whose sum is σ = 32741368752. Its totient is φ = 10913789568.

The previous prime is 20463355453. The next prime is 20463355459. The reversal of 20463355455 is 55455336402.

It is a happy number.

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

It is not a de Polignac number, because 20463355455 - 2¹ = 20463355453 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20463355453) 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, 682111834 + ... + 682111863.

It is an arithmetic number, because the mean of its divisors is an integer number (4092671094).

Almost surely, 2^20463355455 is an apocalyptic number.

20463355455 is a deficient number, since it is larger than the sum of its proper divisors (12278013297).

20463355455 is a wasteful number, since it uses less digits than its factorization.

20463355455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1364223705.

The product of its (nonzero) digits is 1080000, while the sum is 42.

The spelling of 20463355455 in words is "twenty billion, four hundred sixty-three million, three hundred fifty-five thousand, four hundred fifty-five".