66652760 has 32 divisors (see below), whose sum is σ = 157863600. Its totient is φ = 25257600.

The previous prime is 66652753. The next prime is 66652769. The reversal of 66652760 is 6725666.

66652760 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66652769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43091 + ... + 44610.

Almost surely, 2^66652760 is an apocalyptic number.

It is an amenable number.

66652760 is an abundant number, since it is smaller than the sum of its proper divisors (91210840).

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

66652760 is a wasteful number, since it uses less digits than its factorization.

66652760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87731 (or 87727 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 38.

The square root of 66652760 is about 8164.1141589275. The cubic root of 66652760 is about 405.4519366923.

The spelling of 66652760 in words is "sixty-six million, six hundred fifty-two thousand, seven hundred sixty".