51160066 has 4 divisors (see below), whose sum is σ = 76740102. Its totient is φ = 25580032.

The previous prime is 51160063. The next prime is 51160069. The reversal of 51160066 is 66006115.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (51160063) and next prime (51160069).

It can be written as a sum of positive squares in only one way, i.e., 45279441 + 5880625 = 6729^2 + 2425^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 51160066.

It is not an unprimeable number, because it can be changed into a prime (51160063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12790015 + ... + 12790018.

Almost surely, 2^51160066 is an apocalyptic number.

51160066 is a deficient number, since it is larger than the sum of its proper divisors (25580036).

51160066 is a wasteful number, since it uses less digits than its factorization.

51160066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25580035.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 51160066 is about 7152.6265105904. The cubic root of 51160066 is about 371.2305413662.

The spelling of 51160066 in words is "fifty-one million, one hundred sixty thousand, sixty-six".