5811766661415 has 128 divisors (see below), whose sum is σ = 11129050598400. Its totient is φ = 2552520867840.

The previous prime is 5811766661411. The next prime is 5811766661423. The reversal of 5811766661415 is 5141666671185.

It is not a de Polignac number, because 5811766661415 - 2² = 5811766661411 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5811766661411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 72982441 + ... + 73062029.

It is an arithmetic number, because the mean of its divisors is an integer number (86945707800).

Almost surely, 2^{5811766661415} is an apocalyptic number.

5811766661415 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

5811766661415 is a deficient number, since it is larger than the sum of its proper divisors (5317283936985).

5811766661415 is a wasteful number, since it uses less digits than its factorization.

5811766661415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80257.

The product of its digits is 7257600, while the sum is 57.

The spelling of 5811766661415 in words is "five trillion, eight hundred eleven billion, seven hundred sixty-six million, six hundred sixty-one thousand, four hundred fifteen".