20295603628 has 12 divisors (see below), whose sum is σ = 35518307272. Its totient is φ = 10147515840.

The previous prime is 20295603623. The next prime is 20295603631. The reversal of 20295603628 is 82630659202.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20295603623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 222676 + ... + 300292.

Almost surely, 2^20295603628 is an apocalyptic number.

It is an amenable number.

20295603628 is a deficient number, since it is larger than the sum of its proper divisors (15222703644).

20295603628 is a wasteful number, since it uses less digits than its factorization.

20295603628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142992 (or 142990 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 43.

The spelling of 20295603628 in words is "twenty billion, two hundred ninety-five million, six hundred three thousand, six hundred twenty-eight".