20020219984 has 10 divisors (see below), whose sum is σ = 38789176250. Its totient is φ = 10010109984.

The previous prime is 20020219931. The next prime is 20020220023. The reversal of 20020219984 is 48991202002.

It can be written as a sum of positive squares in only one way, i.e., 14414403600 + 5605816384 = 120060^2 + 74872^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 625631859 + ... + 625631890.

It is an arithmetic number, because the mean of its divisors is an integer number (3878917625).

Almost surely, 2^20020219984 is an apocalyptic number.

It is an amenable number.

20020219984 is a deficient number, since it is larger than the sum of its proper divisors (18768956266).

20020219984 is a wasteful number, since it uses less digits than its factorization.

20020219984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1251263757 (or 1251263751 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 37.

The spelling of 20020219984 in words is "twenty billion, twenty million, two hundred nineteen thousand, nine hundred eighty-four".