649350006016 has 18 divisors (see below), whose sum is σ = 1296163489082. Its totient is φ = 324675002880.

The previous prime is 649350006007. The next prime is 649350006017. The reversal of 649350006016 is 610600053946.

It can be written as a sum of positive squares in only one way, i.e., 582620783616 + 66729222400 = 763296^2 + 258320^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 649350006016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (649350006017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1268261475 + ... + 1268261986.

Almost surely, 2^649350006016 is an apocalyptic number.

It is an amenable number.

649350006016 is a deficient number, since it is larger than the sum of its proper divisors (646813483066).

649350006016 is an equidigital number, since it uses as much as digits as its factorization.

649350006016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2536523477 (or 2536523463 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 40.

The spelling of 649350006016 in words is "six hundred forty-nine billion, three hundred fifty million, six thousand, sixteen".