20099299984 has 75 divisors (see below), whose sum is σ = 41329214787. Its totient is φ = 9469235424.

The previous prime is 20099299973. The next prime is 20099300033. The reversal of 20099299984 is 48999299002.

The square root of 20099299984 is 141772.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 299989519 + ... + 299989585.

Almost surely, 2^20099299984 is an apocalyptic number.

20099299984 is the 141772-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20099299984

20099299984 is an abundant number, since it is smaller than the sum of its proper divisors (21229914803).

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

20099299984 is an frugal number, since it uses more digits than its factorization.

20099299984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234 (or 92 counting only the distinct ones).

The product of its (nonzero) digits is 7558272, while the sum is 61.

The spelling of 20099299984 in words is "twenty billion, ninety-nine million, two hundred ninety-nine thousand, nine hundred eighty-four".