20535051004 has 48 divisors (see below), whose sum is σ = 39142970272. Its totient is φ = 9370017792.

The previous prime is 20535050947. The next prime is 20535051007. The reversal of 20535051004 is 40015053502.

It is a self number, because there is not a number n which added to its sum of digits gives 20535051004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20535051007) 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 15 ways as a sum of consecutive naturals, for example, 1629592 + ... + 1642144.

Almost surely, 2^20535051004 is an apocalyptic number.

It is an amenable number.

20535051004 is a deficient number, since it is larger than the sum of its proper divisors (18607919268).

20535051004 is a wasteful number, since it uses less digits than its factorization.

20535051004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12926 (or 12924 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 25.

The spelling of 20535051004 in words is "twenty billion, five hundred thirty-five million, fifty-one thousand, four".