20063755464 has 32 divisors (see below), whose sum is σ = 50981677440. Its totient is φ = 6578280000.

The previous prime is 20063755421. The next prime is 20063755477. The reversal of 20063755464 is 46455736002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6850912 + ... + 6853839.

It is an arithmetic number, because the mean of its divisors is an integer number (1593177420).

Almost surely, 2^20063755464 is an apocalyptic number.

20063755464 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20063755464 is an abundant number, since it is smaller than the sum of its proper divisors (30917921976).

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

20063755464 is a wasteful number, since it uses less digits than its factorization.

20063755464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13704821 (or 13704817 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 42.

The spelling of 20063755464 in words is "twenty billion, sixty-three million, seven hundred fifty-five thousand, four hundred sixty-four".