1666958898014 has 8 divisors (see below), whose sum is σ = 2508426968880. Its totient is φ = 830816575056.

The previous prime is 1666958897999. The next prime is 1666958898061. The reversal of 1666958898014 is 4108988596661.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1331436194 + ... + 1331437445.

It is an arithmetic number, because the mean of its divisors is an integer number (313553371110).

Almost surely, 2^{1666958898014} is an apocalyptic number.

1666958898014 is a deficient number, since it is larger than the sum of its proper divisors (841468070866).

1666958898014 is a wasteful number, since it uses less digits than its factorization.

1666958898014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2662873954.

The product of its (nonzero) digits is 179159040, while the sum is 71.

The spelling of 1666958898014 in words is "one trillion, six hundred sixty-six billion, nine hundred fifty-eight million, eight hundred ninety-eight thousand, fourteen".