1666129098092 has 24 divisors (see below), whose sum is σ = 3001037712960. Its totient is φ = 809035493760.

The previous prime is 1666129098091. The next prime is 1666129098103. The reversal of 1666129098092 is 2908909216661.

It is a super-2 number, since 2×1666129098092² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1666129098091) 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, 43198433 + ... + 43236984.

It is an arithmetic number, because the mean of its divisors is an integer number (125043238040).

Almost surely, 2^{1666129098092} is an apocalyptic number.

It is an amenable number.

1666129098092 is a deficient number, since it is larger than the sum of its proper divisors (1334908614868).

1666129098092 is a wasteful number, since it uses less digits than its factorization.

1666129098092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86435561 (or 86435559 counting only the distinct ones).

The product of its (nonzero) digits is 5038848, while the sum is 59.

The spelling of 1666129098092 in words is "one trillion, six hundred sixty-six billion, one hundred twenty-nine million, ninety-eight thousand, ninety-two".