6706547307561 has 16 divisors (see below), whose sum is σ = 8953445741184. Its totient is φ = 4465341675264.

The previous prime is 6706547307553. The next prime is 6706547307571. The reversal of 6706547307561 is 1657037456076.

It is a happy number.

It is not a de Polignac number, because 6706547307561 - 2³ = 6706547307553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6706547307511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18481905 + ... + 18841281.

It is an arithmetic number, because the mean of its divisors is an integer number (559590358824).

Almost surely, 2^{6706547307561} is an apocalyptic number.

It is an amenable number.

6706547307561 is a deficient number, since it is larger than the sum of its proper divisors (2246898433623).

6706547307561 is a wasteful number, since it uses less digits than its factorization.

6706547307561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367280.

The product of its (nonzero) digits is 22226400, while the sum is 57.

The spelling of 6706547307561 in words is "six trillion, seven hundred six billion, five hundred forty-seven million, three hundred seven thousand, five hundred sixty-one".