61746066 has 12 divisors (see below), whose sum is σ = 133783182. Its totient is φ = 20582016.

The previous prime is 61746011. The next prime is 61746071. The reversal of 61746066 is 66064716.

It can be written as a sum of positive squares in only one way, i.e., 51538041 + 10208025 = 7179^2 + 3195^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 61746066.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1715151 + ... + 1715186.

Almost surely, 2^61746066 is an apocalyptic number.

61746066 is an abundant number, since it is smaller than the sum of its proper divisors (72037116).

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

61746066 is a wasteful number, since it uses less digits than its factorization.

61746066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3430345 (or 3430342 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 61746066 is about 7857.8665043382. The cubic root of 61746066 is about 395.2480757527.

The spelling of 61746066 in words is "sixty-one million, seven hundred forty-six thousand, sixty-six".