20566053332432 has 40 divisors (see below), whose sum is σ = 40408745192640. Its totient is φ = 10137995759360.

The previous prime is 20566053332431. The next prime is 20566053332437. The reversal of 20566053332432 is 23423335066502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20566053332431) 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, 69579068 + ... + 69874020.

It is an arithmetic number, because the mean of its divisors is an integer number (1010218629816).

Almost surely, 2^{20566053332432} is an apocalyptic number.

It is an amenable number.

20566053332432 is a deficient number, since it is larger than the sum of its proper divisors (19842691860208).

20566053332432 is a wasteful number, since it uses less digits than its factorization.

20566053332432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356411 (or 356405 counting only the distinct ones).

The product of its (nonzero) digits is 2332800, while the sum is 44.

Adding to 20566053332432 its reverse (23423335066502), we get a palindrome (43989388398934).

The spelling of 20566053332432 in words is "twenty trillion, five hundred sixty-six billion, fifty-three million, three hundred thirty-two thousand, four hundred thirty-two".