66050951 has 4 divisors (see below), whose sum is σ = 68328600. Its totient is φ = 63773304.

The previous prime is 66050947. The next prime is 66050953. The reversal of 66050951 is 15905066.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15905066 = 2 ⋅7952533.

It is a cyclic number.

It is not a de Polignac number, because 66050951 - 2² = 66050947 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66050953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1138781 + ... + 1138838.

It is an arithmetic number, because the mean of its divisors is an integer number (17082150).

Almost surely, 2^66050951 is an apocalyptic number.

66050951 is a deficient number, since it is larger than the sum of its proper divisors (2277649).

66050951 is a wasteful number, since it uses less digits than its factorization.

66050951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2277648.

The product of its (nonzero) digits is 8100, while the sum is 32.

The square root of 66050951 is about 8127.1736169470. The cubic root of 66050951 is about 404.2279678490.

The spelling of 66050951 in words is "sixty-six million, fifty thousand, nine hundred fifty-one".