20701594907 has 4 divisors (see below), whose sum is σ = 23658965616. Its totient is φ = 17744224200.

The previous prime is 20701594897. The next prime is 20701594933. The reversal of 20701594907 is 70949510702.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20701594907 - 2⁴ = 20701594891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20701594937) 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 3 ways as a sum of consecutive naturals, for example, 1478685344 + ... + 1478685357.

It is an arithmetic number, because the mean of its divisors is an integer number (5914741404).

Almost surely, 2^20701594907 is an apocalyptic number.

20701594907 is a deficient number, since it is larger than the sum of its proper divisors (2957370709).

20701594907 is an equidigital number, since it uses as much as digits as its factorization.

20701594907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2957370708.

The product of its (nonzero) digits is 158760, while the sum is 44.

The spelling of 20701594907 in words is "twenty billion, seven hundred one million, five hundred ninety-four thousand, nine hundred seven".