20549520570 has 16 divisors (see below), whose sum is σ = 49318849440. Its totient is φ = 5479872144.

The previous prime is 20549520473. The next prime is 20549520631. The reversal of 20549520570 is 7502594502.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 342491980 + ... + 342492039.

It is an arithmetic number, because the mean of its divisors is an integer number (3082428090).

Almost surely, 2^20549520570 is an apocalyptic number.

20549520570 is an abundant number, since it is smaller than the sum of its proper divisors (28769328870).

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

20549520570 is a wasteful number, since it uses less digits than its factorization.

20549520570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 684984029.

The product of its (nonzero) digits is 126000, while the sum is 39.

The spelling of 20549520570 in words is "twenty billion, five hundred forty-nine million, five hundred twenty thousand, five hundred seventy".