20251604045 has 16 divisors (see below), whose sum is σ = 24553107072. Its totient is φ = 16034024640.

The previous prime is 20251604003. The next prime is 20251604047. The reversal of 20251604045 is 54040615202.

It is not a de Polignac number, because 20251604045 - 2¹⁶ = 20251538509 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20251603999 and 20251604017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20251604047) 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, 881150 + ... + 903840.

It is an arithmetic number, because the mean of its divisors is an integer number (1534569192).

Almost surely, 2^20251604045 is an apocalyptic number.

It is an amenable number.

20251604045 is a deficient number, since it is larger than the sum of its proper divisors (4301503027).

20251604045 is a wasteful number, since it uses less digits than its factorization.

20251604045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24532.

The product of its (nonzero) digits is 9600, while the sum is 29.

The spelling of 20251604045 in words is "twenty billion, two hundred fifty-one million, six hundred four thousand, forty-five".