915084091666 has 32 divisors (see below), whose sum is σ = 1452854937600. Its totient is φ = 431070232320.

The previous prime is 915084091661. The next prime is 915084091697. The reversal of 915084091666 is 666190480519.

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (915084091661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6644655 + ... + 6780973.

It is an arithmetic number, because the mean of its divisors is an integer number (45401716800).

Almost surely, 2^915084091666 is an apocalyptic number.

915084091666 is a deficient number, since it is larger than the sum of its proper divisors (537770845934).

915084091666 is a wasteful number, since it uses less digits than its factorization.

915084091666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137314.

The product of its (nonzero) digits is 2799360, while the sum is 55.

The spelling of 915084091666 in words is "nine hundred fifteen billion, eighty-four million, ninety-one thousand, six hundred sixty-six".