966661511535 has 160 divisors (see below), whose sum is σ = 1868907997440. Its totient is φ = 476268429312.

The previous prime is 966661511527. The next prime is 966661511537. The reversal of 966661511535 is 535115166669.

It is not a de Polignac number, because 966661511535 - 2³ = 966661511527 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (966661511537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 94092159 + ... + 94102431.

It is an arithmetic number, because the mean of its divisors is an integer number (11680674984).

Almost surely, 2^966661511535 is an apocalyptic number.

966661511535 is a deficient number, since it is larger than the sum of its proper divisors (902246485905).

966661511535 is a wasteful number, since it uses less digits than its factorization.

966661511535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10559 (or 10550 counting only the distinct ones).

The product of its digits is 4374000, while the sum is 54.

The spelling of 966661511535 in words is "nine hundred sixty-six billion, six hundred sixty-one million, five hundred eleven thousand, five hundred thirty-five".