66085512 has 64 divisors (see below), whose sum is σ = 168912000. Its totient is φ = 21542400.

The previous prime is 66085493. The next prime is 66085531. The reversal of 66085512 is 21558066.

It is an interprime number because it is at equal distance from previous prime (66085493) and next prime (66085531).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 331989 + ... + 332187.

It is an arithmetic number, because the mean of its divisors is an integer number (2639250).

Almost surely, 2^66085512 is an apocalyptic number.

It is an amenable number.

66085512 is an abundant number, since it is smaller than the sum of its proper divisors (102826488).

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

66085512 is a wasteful number, since it uses less digits than its factorization.

66085512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446 (or 442 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 66085512 is about 8129.2996008266. The cubic root of 66085512 is about 404.2984593237.

The spelling of 66085512 in words is "sixty-six million, eighty-five thousand, five hundred twelve".