1670988693361 has 8 divisors (see below), whose sum is σ = 1799536995200. Its totient is φ = 1542441921552.

The previous prime is 1670988693343. The next prime is 1670988693371. The reversal of 1670988693361 is 1633968890761.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1670988693361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1670988693331) 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, 2981686 + ... + 3497488.

It is an arithmetic number, because the mean of its divisors is an integer number (224942124400).

Almost surely, 2^{1670988693361} is an apocalyptic number.

It is an amenable number.

1670988693361 is a deficient number, since it is larger than the sum of its proper divisors (128548301839).

1670988693361 is a wasteful number, since it uses less digits than its factorization.

1670988693361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 765015.

The product of its (nonzero) digits is 70543872, while the sum is 67.

The spelling of 1670988693361 in words is "one trillion, six hundred seventy billion, nine hundred eighty-eight million, six hundred ninety-three thousand, three hundred sixty-one".