1666853500350 has 24 divisors (see below), whose sum is σ = 4133796681240. Its totient is φ = 444494266720.

The previous prime is 1666853500331. The next prime is 1666853500369. The reversal of 1666853500350 is 530053586661.

It is an interprime number because it is at equal distance from previous prime (1666853500331) and next prime (1666853500369).

It is a self number, because there is not a number n which added to its sum of digits gives 1666853500350.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5556178185 + ... + 5556178484.

It is an arithmetic number, because the mean of its divisors is an integer number (172241528385).

Almost surely, 2^{1666853500350} is an apocalyptic number.

1666853500350 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1666853500350 is an abundant number, since it is smaller than the sum of its proper divisors (2466943180890).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1666853500350 is a wasteful number, since it uses less digits than its factorization.

1666853500350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11112356684 (or 11112356679 counting only the distinct ones).

The product of its (nonzero) digits is 1944000, while the sum is 48.

The spelling of 1666853500350 in words is "one trillion, six hundred sixty-six billion, eight hundred fifty-three million, five hundred thousand, three hundred fifty".