66087402 has 16 divisors (see below), whose sum is σ = 135747552. Its totient is φ = 21433680.

The previous prime is 66087397. The next prime is 66087403. The reversal of 66087402 is 20478066.

It is not an unprimeable number, because it can be changed into a prime (66087403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 148624 + ... + 149067.

It is an arithmetic number, because the mean of its divisors is an integer number (8484222).

Almost surely, 2^66087402 is an apocalyptic number.

66087402 is an abundant number, since it is smaller than the sum of its proper divisors (69660150).

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

66087402 is a wasteful number, since it uses less digits than its factorization.

66087402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297733.

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 66087402 is about 8129.4158461725. The cubic root of 66087402 is about 404.3023135058.

The spelling of 66087402 in words is "sixty-six million, eighty-seven thousand, four hundred two".