66936760 has 64 divisors (see below), whose sum is σ = 165564000. Its totient is φ = 24153600.

The previous prime is 66936733. The next prime is 66936787. The reversal of 66936760 is 6763966.

It is an interprime number because it is at equal distance from previous prime (66936733) and next prime (66936787).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 65050 + ... + 66070.

Almost surely, 2^66936760 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 66936760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82782000).

66936760 is an abundant number, since it is smaller than the sum of its proper divisors (98627240).

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

66936760 is a wasteful number, since it uses less digits than its factorization.

66936760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1192 (or 1188 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 43.

The square root of 66936760 is about 8181.4888620593. The cubic root of 66936760 is about 406.0269826033.

The spelling of 66936760 in words is "sixty-six million, nine hundred thirty-six thousand, seven hundred sixty".