6501401233601 has 4 divisors (see below), whose sum is σ = 6501678727104. Its totient is φ = 6501123740100.

The previous prime is 6501401233553. The next prime is 6501401233631. The reversal of 6501401233601 is 1063321041056.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6501401233601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6501401233631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138711605 + ... + 138758466.

It is an arithmetic number, because the mean of its divisors is an integer number (1625419681776).

Almost surely, 2^{6501401233601} is an apocalyptic number.

It is an amenable number.

6501401233601 is a deficient number, since it is larger than the sum of its proper divisors (277493503).

6501401233601 is a wasteful number, since it uses less digits than its factorization.

6501401233601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277493502.

The product of its (nonzero) digits is 12960, while the sum is 32.

Adding to 6501401233601 its reverse (1063321041056), we get a palindrome (7564722274657).

The spelling of 6501401233601 in words is "six trillion, five hundred one billion, four hundred one million, two hundred thirty-three thousand, six hundred one".