662920602649 has 8 divisors (see below), whose sum is σ = 673765360128. Its totient is φ = 652157692800.

The previous prime is 662920602637. The next prime is 662920602671. The reversal of 662920602649 is 946206029266.

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

It is a cyclic number.

It is not a de Polignac number, because 662920602649 - 2²¹ = 662918505497 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 662920602596 and 662920602605.

It is not an unprimeable number, because it can be changed into a prime (662920600649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20445577 + ... + 20477974.

It is an arithmetic number, because the mean of its divisors is an integer number (84220670016).

Almost surely, 2^662920602649 is an apocalyptic number.

It is an amenable number.

662920602649 is a deficient number, since it is larger than the sum of its proper divisors (10844757479).

662920602649 is a wasteful number, since it uses less digits than its factorization.

662920602649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40923815.

The product of its (nonzero) digits is 3359232, while the sum is 52.

The spelling of 662920602649 in words is "six hundred sixty-two billion, nine hundred twenty million, six hundred two thousand, six hundred forty-nine".