66941696 has 36 divisors (see below), whose sum is σ = 134904000. Its totient is φ = 33149952.

The previous prime is 66941681. The next prime is 66941713. The reversal of 66941696 is 69614966.

It is a super-3 number, since 3×66941696³ (a number of 24 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 66941696.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26705 + ... + 29103.

Almost surely, 2^66941696 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66941696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67452000).

66941696 is an abundant number, since it is smaller than the sum of its proper divisors (67962304).

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

66941696 is a wasteful number, since it uses less digits than its factorization.

66941696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2524 (or 2510 counting only the distinct ones).

The product of its digits is 419904, while the sum is 47.

The square root of 66941696 is about 8181.7905130845. The cubic root of 66941696 is about 406.0369626697.

The spelling of 66941696 in words is "sixty-six million, nine hundred forty-one thousand, six hundred ninety-six".