20010199064 has 32 divisors (see below), whose sum is σ = 37987775280. Its totient is φ = 9880571904.

The previous prime is 20010199063. The next prime is 20010199073. The reversal of 20010199064 is 46099101002.

It is a self number, because there is not a number n which added to its sum of digits gives 20010199064.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20010199063) 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, 334784 + ... + 390000.

Almost surely, 2^20010199064 is an apocalyptic number.

It is an amenable number.

20010199064 is a deficient number, since it is larger than the sum of its proper divisors (17977576216).

20010199064 is a wasteful number, since it uses less digits than its factorization.

20010199064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55787 (or 55783 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 32.

The spelling of 20010199064 in words is "twenty billion, ten million, one hundred ninety-nine thousand, sixty-four".