66690096 has 40 divisors (see below), whose sum is σ = 187946304. Its totient is φ = 20208960.

The previous prime is 66690089. The next prime is 66690097. The reversal of 66690096 is 69009666.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (66690097) 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, 62626 + ... + 63681.

Almost surely, 2^66690096 is an apocalyptic number.

66690096 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

66690096 is an abundant number, since it is smaller than the sum of its proper divisors (121256208).

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

66690096 is a wasteful number, since it uses less digits than its factorization.

66690096 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126329 (or 126323 counting only the distinct ones).

The product of its (nonzero) digits is 104976, while the sum is 42.

The square root of 66690096 is about 8166.4004310345. The cubic root of 66690096 is about 405.5276281208.

The spelling of 66690096 in words is "sixty-six million, six hundred ninety thousand, ninety-six".