20150904448 has 16 divisors (see below), whose sum is σ = 40144380210. Its totient is φ = 10075452160.

The previous prime is 20150904439. The next prime is 20150904469. The reversal of 20150904448 is 84440905102.

It can be written as a sum of positive squares in only one way, i.e., 20139015744 + 11888704 = 141912^2 + 3448^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78714343 + ... + 78714598.

Almost surely, 2^20150904448 is an apocalyptic number.

It is an amenable number.

20150904448 is a deficient number, since it is larger than the sum of its proper divisors (19993475762).

20150904448 is an equidigital number, since it uses as much as digits as its factorization.

20150904448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157428955 (or 157428943 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 37.

The spelling of 20150904448 in words is "twenty billion, one hundred fifty million, nine hundred four thousand, four hundred forty-eight".