6370657065649 has 4 divisors (see below), whose sum is σ = 6394339805940. Its totient is φ = 6346974325360.

The previous prime is 6370657065629. The next prime is 6370657065727. The reversal of 6370657065649 is 9465607560736.

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 2628629903025 + 3742027162624 = 1621305^2 + 1934432^2 .

It is a cyclic number.

It is not a de Polignac number, because 6370657065649 - 2²¹ = 6370654968497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6370657065629) 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, 11841369742 + ... + 11841370279.

It is an arithmetic number, because the mean of its divisors is an integer number (1598584951485).

Almost surely, 2^{6370657065649} is an apocalyptic number.

It is an amenable number.

6370657065649 is a deficient number, since it is larger than the sum of its proper divisors (23682740291).

6370657065649 is a wasteful number, since it uses less digits than its factorization.

6370657065649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23682740290.

The product of its (nonzero) digits is 171460800, while the sum is 64.

The spelling of 6370657065649 in words is "six trillion, three hundred seventy billion, six hundred fifty-seven million, sixty-five thousand, six hundred forty-nine".