650006681105501 has 24 divisors (see below), whose sum is σ = 696662863323840. Its totient is φ = 606324139034112.

The previous prime is 650006681105489. The next prime is 650006681105581. The reversal of 650006681105501 is 105501186600056.

It is not a de Polignac number, because 650006681105501 - 2¹⁸ = 650006680843357 is a prime.

It is a super-2 number, since 2×650006681105501² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (650006681105581) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2306576 + ... + 36129401.

It is an arithmetic number, because the mean of its divisors is an integer number (29027619305160).

Almost surely, 2^{650006681105501} is an apocalyptic number.

It is an amenable number.

650006681105501 is a deficient number, since it is larger than the sum of its proper divisors (46656182218339).

650006681105501 is a wasteful number, since it uses less digits than its factorization.

650006681105501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38436533 (or 38436516 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 44.

Subtracting from 650006681105501 its reverse (105501186600056), we obtain a palindrome (544505494505445).

The spelling of 650006681105501 in words is "six hundred fifty trillion, six billion, six hundred eighty-one million, one hundred five thousand, five hundred one".