20261347522 has 16 divisors (see below), whose sum is σ = 32808000960. Its totient is φ = 9329067792.

The previous prime is 20261347511. The next prime is 20261347529. The reversal of 20261347522 is 22574316202.

It is not an unprimeable number, because it can be changed into a prime (20261347529) by changing a digit.

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, 919038 + ... + 940825.

It is an arithmetic number, because the mean of its divisors is an integer number (2050500060).

Almost surely, 2^20261347522 is an apocalyptic number.

20261347522 is a deficient number, since it is larger than the sum of its proper divisors (12546653438).

20261347522 is a wasteful number, since it uses less digits than its factorization.

20261347522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1860297.

The product of its (nonzero) digits is 40320, while the sum is 34.

The spelling of 20261347522 in words is "twenty billion, two hundred sixty-one million, three hundred forty-seven thousand, five hundred twenty-two".