261646065177114 has 16 divisors (see below), whose sum is σ = 523325531456928. Its totient is φ = 87209788208592.

The previous prime is 261646065177113. The next prime is 261646065177121. The reversal of 261646065177114 is 411771560646162.

It is not an unprimeable number, because it can be changed into a prime (261646065177113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1391610777 + ... + 1391798780.

It is an arithmetic number, because the mean of its divisors is an integer number (32707845716058).

Almost surely, 2^{261646065177114} is an apocalyptic number.

261646065177114 is an abundant number, since it is smaller than the sum of its proper divisors (261679466279814).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

261646065177114 is a wasteful number, since it uses less digits than its factorization.

261646065177114 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2783425229.

The product of its (nonzero) digits is 10160640, while the sum is 57.

The spelling of 261646065177114 in words is "two hundred sixty-one trillion, six hundred forty-six billion, sixty-five million, one hundred seventy-seven thousand, one hundred fourteen".