20450403135630 has 96 divisors (see below), whose sum is σ = 59108262071040. Its totient is φ = 4871560043520.

The previous prime is 20450403135581. The next prime is 20450403135749. The reversal of 20450403135630 is 3653130405402.

20450403135630 is a `hidden beast` number, since 2 + 0 + 4 + 5 + 0 + 4 + 0 + 3 + 13 + 5 + 630 = 666.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 281882715 + ... + 281955254.

It is an arithmetic number, because the mean of its divisors is an integer number (615711063240).

Almost surely, 2^{20450403135630} is an apocalyptic number.

20450403135630 is an abundant number, since it is smaller than the sum of its proper divisors (38657858935410).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20450403135630 is a wasteful number, since it uses less digits than its factorization.

20450403135630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 563838026 (or 563838023 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 36.

The spelling of 20450403135630 in words is "twenty trillion, four hundred fifty billion, four hundred three million, one hundred thirty-five thousand, six hundred thirty".