66361602 has 8 divisors (see below), whose sum is σ = 132723216. Its totient is φ = 22120532.

The previous prime is 66361597. The next prime is 66361619. The reversal of 66361602 is 20616366.

It is a sphenic number, since it is the product of 3 distinct primes.

66361602 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 66361602.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5530128 + ... + 5530139.

It is an arithmetic number, because the mean of its divisors is an integer number (16590402).

Almost surely, 2^66361602 is an apocalyptic number.

66361602 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

66361602 is a wasteful number, since it uses less digits than its factorization.

66361602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11060272.

The product of its (nonzero) digits is 7776, while the sum is 30.

The square root of 66361602 is about 8146.2630696535. The cubic root of 66361602 is about 404.8606989298.

Adding to 66361602 its reverse (20616366), we get a palindrome (86977968).

The spelling of 66361602 in words is "sixty-six million, three hundred sixty-one thousand, six hundred two".