130643307206761 has 4 divisors (see below), whose sum is σ = 130644690926724. Its totient is φ = 130641923486800.

The previous prime is 130643307206689. The next prime is 130643307206779. The reversal of 130643307206761 is 167602703346031.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 69134485531225 + 61508821675536 = 8314715^2 + 7842756^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-130643307206761 is a prime.

It is a super-2 number, since 2×130643307206761² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130643307200761) 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, 691718350 + ... + 691907191.

It is an arithmetic number, because the mean of its divisors is an integer number (32661172731681).

Almost surely, 2^{130643307206761} is an apocalyptic number.

It is an amenable number.

130643307206761 is a deficient number, since it is larger than the sum of its proper divisors (1383719963).

130643307206761 is an equidigital number, since it uses as much as digits as its factorization.

130643307206761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1383719962.

The product of its (nonzero) digits is 2286144, while the sum is 49.

The spelling of 130643307206761 in words is "one hundred thirty trillion, six hundred forty-three billion, three hundred seven million, two hundred six thousand, seven hundred sixty-one".