66441762 has 32 divisors (see below), whose sum is σ = 148157760. Its totient is φ = 22070880.

The previous prime is 66441743. The next prime is 66441769. The reversal of 66441762 is 26714466.

66441762 is a `hidden beast` number, since 6 + 644 + 1 + 7 + 6 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (66441769) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14937 + ... + 18867.

It is an arithmetic number, because the mean of its divisors is an integer number (4629930).

Almost surely, 2^66441762 is an apocalyptic number.

66441762 is an abundant number, since it is smaller than the sum of its proper divisors (81715998).

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

66441762 is a wasteful number, since it uses less digits than its factorization.

66441762 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4255 (or 4249 counting only the distinct ones).

The product of its digits is 48384, while the sum is 36.

The square root of 66441762 is about 8151.1816321316. The cubic root of 66441762 is about 405.0236474532.

The spelling of 66441762 in words is "sixty-six million, four hundred forty-one thousand, seven hundred sixty-two".