20004036577 has 8 divisors (see below), whose sum is σ = 22870512896. Its totient is φ = 17139749472.

The previous prime is 20004036517. The next prime is 20004036599. The reversal of 20004036577 is 77563040002.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20004036577 is a prime.

It is a super-2 number, since 2×20004036577² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20004036517) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 527673 + ... + 564310.

It is an arithmetic number, because the mean of its divisors is an integer number (2858814112).

Almost surely, 2^20004036577 is an apocalyptic number.

It is an amenable number.

20004036577 is a deficient number, since it is larger than the sum of its proper divisors (2866476319).

20004036577 is a wasteful number, since it uses less digits than its factorization.

20004036577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1094607.

The product of its (nonzero) digits is 35280, while the sum is 34.

Adding to 20004036577 its reverse (77563040002), we get a palindrome (97567076579).

The spelling of 20004036577 in words is "twenty billion, four million, thirty-six thousand, five hundred seventy-seven".