99766555532 has 24 divisors (see below), whose sum is σ = 199575909120. Its totient is φ = 42747924240.

The previous prime is 99766555531. The next prime is 99766555549. The reversal of 99766555532 is 23555566799.

It is a nialpdrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (99766555531) 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 7 ways as a sum of consecutive naturals, for example, 248432 + ... + 511127.

It is an arithmetic number, because the mean of its divisors is an integer number (8315662880).

Almost surely, 2^99766555532 is an apocalyptic number.

It is an amenable number.

99766555532 is an abundant number, since it is smaller than the sum of its proper divisors (99809353588).

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

99766555532 is a wasteful number, since it uses less digits than its factorization.

99766555532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 764261 (or 764259 counting only the distinct ones).

The product of its digits is 76545000, while the sum is 62.

The spelling of 99766555532 in words is "ninety-nine billion, seven hundred sixty-six million, five hundred fifty-five thousand, five hundred thirty-two".