20252145104 has 40 divisors (see below), whose sum is σ = 41342151552. Its totient is φ = 9591753600.

The previous prime is 20252145103. The next prime is 20252145143. The reversal of 20252145104 is 40154125202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20252145103) 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 7 ways as a sum of consecutive naturals, for example, 229247 + ... + 305054.

Almost surely, 2^20252145104 is an apocalyptic number.

It is an amenable number.

20252145104 is an abundant number, since it is smaller than the sum of its proper divisors (21090006448).

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

20252145104 is a wasteful number, since it uses less digits than its factorization.

20252145104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 534435 (or 534429 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 26.

The spelling of 20252145104 in words is "twenty billion, two hundred fifty-two million, one hundred forty-five thousand, one hundred four".