6531646341007 has 32 divisors (see below), whose sum is σ = 7074541393920. Its totient is φ = 6011477065440.

The previous prime is 6531646340987. The next prime is 6531646341091. The reversal of 6531646341007 is 7001436461356.

It is a de Polignac number, because none of the positive numbers 2^k-6531646341007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6531646347007) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 60277158 + ... + 60385420.

It is an arithmetic number, because the mean of its divisors is an integer number (221079418560).

Almost surely, 2^{6531646341007} is an apocalyptic number.

6531646341007 is a gapful number since it is divisible by the number (67) formed by its first and last digit.

6531646341007 is a deficient number, since it is larger than the sum of its proper divisors (542895052913).

6531646341007 is a wasteful number, since it uses less digits than its factorization.

6531646341007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109003.

The product of its (nonzero) digits is 1088640, while the sum is 46.

The spelling of 6531646341007 in words is "six trillion, five hundred thirty-one billion, six hundred forty-six million, three hundred forty-one thousand, seven".