63532523161566 has 24 divisors (see below), whose sum is σ = 145751082547824. Its totient is φ = 19931771972160.

The previous prime is 63532523161559. The next prime is 63532523161573. The reversal of 63532523161566 is 66516132523536.

63532523161566 is a `hidden beast` number, since 6 + 3 + 5 + 3 + 2 + 523 + 1 + 61 + 56 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (63532523161559) and next prime (63532523161573).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 103811312050 + ... + 103811312661.

It is an arithmetic number, because the mean of its divisors is an integer number (6072961772826).

Almost surely, 2^{63532523161566} is an apocalyptic number.

63532523161566 is an abundant number, since it is smaller than the sum of its proper divisors (82218559386258).

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

63532523161566 is a wasteful number, since it uses less digits than its factorization.

63532523161566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207622624736 (or 207622624733 counting only the distinct ones).

The product of its digits is 17496000, while the sum is 54.

The spelling of 63532523161566 in words is "sixty-three trillion, five hundred thirty-two billion, five hundred twenty-three million, one hundred sixty-one thousand, five hundred sixty-six".