20003571056632 has 8 divisors (see below), whose sum is σ = 37506695731200. Its totient is φ = 10001785528312.

The previous prime is 20003571056597. The next prime is 20003571056633. The reversal of 20003571056632 is 23665017530002.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20003571056633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1250223191032 + ... + 1250223191047.

It is an arithmetic number, because the mean of its divisors is an integer number (4688336966400).

Almost surely, 2^{20003571056632} is an apocalyptic number.

It is an amenable number.

20003571056632 is a deficient number, since it is larger than the sum of its proper divisors (17503124674568).

20003571056632 is a wasteful number, since it uses less digits than its factorization.

20003571056632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2500446382085 (or 2500446382081 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 40.

Adding to 20003571056632 its reverse (23665017530002), we get a palindrome (43668588586634).

The spelling of 20003571056632 in words is "twenty trillion, three billion, five hundred seventy-one million, fifty-six thousand, six hundred thirty-two".