20507041604 has 12 divisors (see below), whose sum is σ = 41014083264. Its totient is φ = 8788732104.

The previous prime is 20507041591. The next prime is 20507041613. The reversal of 20507041604 is 40614070502.

20507041604 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 366197144 + ... + 366197199.

It is an arithmetic number, because the mean of its divisors is an integer number (3417840272).

Almost surely, 2^20507041604 is an apocalyptic number.

It is an amenable number.

20507041604 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20507041604 is a wasteful number, since it uses less digits than its factorization.

20507041604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 732394354 (or 732394352 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 29.

The spelling of 20507041604 in words is "twenty billion, five hundred seven million, forty-one thousand, six hundred four".