662346663601 has 6 divisors (see below), whose sum is σ = 770484894450. Its totient is φ = 567725711616.

The previous prime is 662346663557. The next prime is 662346663637. The reversal of 662346663601 is 106366643266.

It can be written as a sum of positive squares in only one way, i.e., 623545543201 + 38801120400 = 789649^2 + 196980^2 .

It is not a de Polignac number, because 662346663601 - 2¹⁵ = 662346630833 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49), and also a Moran number because the ratio is a prime number: 13517278849 = 662346663601 / (6 + 6 + 2 + 3 + 4 + 6 + 6 + 6 + 3 + 6 + 0 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (662346663001) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6758639376 + ... + 6758639473.

It is an arithmetic number, because the mean of its divisors is an integer number (128414149075).

Almost surely, 2^662346663601 is an apocalyptic number.

It is an amenable number.

662346663601 is a deficient number, since it is larger than the sum of its proper divisors (108138230849).

662346663601 is a wasteful number, since it uses less digits than its factorization.

662346663601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13517278863 (or 13517278856 counting only the distinct ones).

The product of its (nonzero) digits is 3359232, while the sum is 49.

The spelling of 662346663601 in words is "six hundred sixty-two billion, three hundred forty-six million, six hundred sixty-three thousand, six hundred one".