7432661663 has 4 divisors (see below), whose sum is σ = 8494470480. Its totient is φ = 6370852848.

The previous prime is 7432661651. The next prime is 7432661729. The reversal of 7432661663 is 3661662347.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 7432661663 - 2¹⁸ = 7432399519 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7432661603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 530904398 + ... + 530904411.

It is an arithmetic number, because the mean of its divisors is an integer number (2123617620).

Almost surely, 2^7432661663 is an apocalyptic number.

7432661663 is a deficient number, since it is larger than the sum of its proper divisors (1061808817).

7432661663 is a wasteful number, since it uses less digits than its factorization.

7432661663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1061808816.

The product of its digits is 653184, while the sum is 44.

The square root of 7432661663 is about 86212.8857132157. The cubic root of 7432661663 is about 1951.5579627279.

The spelling of 7432661663 in words is "seven billion, four hundred thirty-two million, six hundred sixty-one thousand, six hundred sixty-three".