20039661948 has 48 divisors (see below), whose sum is σ = 51106857984. Its totient is φ = 6084145920.

The previous prime is 20039661947. The next prime is 20039661977. The reversal of 20039661948 is 84916693002.

It is a junction number, because it is equal to n+sod(n) for n = 20039661897 and 20039661906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20039661947) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1578090 + ... + 1590737.

It is an arithmetic number, because the mean of its divisors is an integer number (1064726208).

Almost surely, 2^20039661948 is an apocalyptic number.

It is an amenable number.

20039661948 is an abundant number, since it is smaller than the sum of its proper divisors (31067196036).

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

20039661948 is a wasteful number, since it uses less digits than its factorization.

20039661948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3168882 (or 3168880 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 48.

The spelling of 20039661948 in words is "twenty billion, thirty-nine million, six hundred sixty-one thousand, nine hundred forty-eight".