66095740 has 12 divisors (see below), whose sum is σ = 138801096. Its totient is φ = 26438288.

The previous prime is 66095707. The next prime is 66095749. The reversal of 66095740 is 4759066.

It is a super-2 number, since 2×66095740² = 8737293692295200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 66095740.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66095749) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1652374 + ... + 1652413.

It is an arithmetic number, because the mean of its divisors is an integer number (11566758).

Almost surely, 2^66095740 is an apocalyptic number.

It is an amenable number.

66095740 is an abundant number, since it is smaller than the sum of its proper divisors (72705356).

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

66095740 is a wasteful number, since it uses less digits than its factorization.

66095740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3304796 (or 3304794 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 37.

The square root of 66095740 is about 8129.9286589736. The cubic root of 66095740 is about 404.3193158937.

The spelling of 66095740 in words is "sixty-six million, ninety-five thousand, seven hundred forty".