650332660401 has 12 divisors (see below), whose sum is σ = 939377257728. Its totient is φ = 433551479544.

The previous prime is 650332660399. The next prime is 650332660501. The reversal of 650332660401 is 104066233056.

It is not a de Polignac number, because 650332660401 - 2¹ = 650332660399 is a prime.

It is not an unprimeable number, because it can be changed into a prime (650332660501) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1255936 + ... + 1696478.

It is an arithmetic number, because the mean of its divisors is an integer number (78281438144).

Almost surely, 2^650332660401 is an apocalyptic number.

It is an amenable number.

650332660401 is a deficient number, since it is larger than the sum of its proper divisors (289044597327).

650332660401 is a wasteful number, since it uses less digits than its factorization.

650332660401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 604572 (or 604569 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 36.

Adding to 650332660401 its reverse (104066233056), we get a palindrome (754398893457).

The spelling of 650332660401 in words is "six hundred fifty billion, three hundred thirty-two million, six hundred sixty thousand, four hundred one".