66002302361 has 4 divisors (see below), whose sum is σ = 66006465972. Its totient is φ = 65998138752.

The previous prime is 66002302343. The next prime is 66002302381. The reversal of 66002302361 is 16320320066.

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

It can be written as a sum of positive squares in 2 ways, for example, as 62028891136 + 3973411225 = 249056^2 + 63035^2 .

It is a cyclic number.

It is not a de Polignac number, because 66002302361 - 2¹⁸ = 66002040217 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (66002302321) 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, 2057936 + ... + 2089761.

It is an arithmetic number, because the mean of its divisors is an integer number (16501616493).

Almost surely, 2^66002302361 is an apocalyptic number.

It is an amenable number.

66002302361 is a deficient number, since it is larger than the sum of its proper divisors (4163611).

66002302361 is a wasteful number, since it uses less digits than its factorization.

66002302361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4163610.

The product of its (nonzero) digits is 7776, while the sum is 29.

The spelling of 66002302361 in words is "sixty-six billion, two million, three hundred two thousand, three hundred sixty-one".