7166561165264 has 40 divisors (see below), whose sum is σ = 14076721362528. Its totient is φ = 3534153937280.

The previous prime is 7166561165251. The next prime is 7166561165273. The reversal of 7166561165264 is 4625611656617.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8831807 + ... + 9609054.

Almost surely, 2^{7166561165264} is an apocalyptic number.

It is an amenable number.

7166561165264 is a deficient number, since it is larger than the sum of its proper divisors (6910160197264).

7166561165264 is a wasteful number, since it uses less digits than its factorization.

7166561165264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18441203 (or 18441197 counting only the distinct ones).

The product of its digits is 10886400, while the sum is 56.

The spelling of 7166561165264 in words is "seven trillion, one hundred sixty-six billion, five hundred sixty-one million, one hundred sixty-five thousand, two hundred sixty-four".