917666666666666 has 16 divisors (see below), whose sum is σ = 1573313795411904. Its totient is φ = 393242979718464.

The previous prime is 917666666666663. The next prime is 917666666666683. The reversal of 917666666666666 is 666666666666719.

It is a happy number.

917666666666666 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×917666666666666² (a number of 31 digits) contains 22 as substring.

917666666666666 is a modest number, since divided by 66666666 gives 9176666 as remainder.

It is not an unprimeable number, because it can be changed into a prime (917666666666663) 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, 3561080495 + ... + 3561338178.

It is an arithmetic number, because the mean of its divisors is an integer number (98332112213244).

Almost surely, 2^{917666666666666} is an apocalyptic number.

917666666666666 is a deficient number, since it is larger than the sum of its proper divisors (655647128745238).

917666666666666 is a wasteful number, since it uses less digits than its factorization.

917666666666666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7122427885.

The product of its digits is 137137287168, while the sum is 89.

The spelling of 917666666666666 in words is "nine hundred seventeen trillion, six hundred sixty-six billion, six hundred sixty-six million, six hundred sixty-six thousand, six hundred sixty-six".