1691242858160 has 40 divisors (see below), whose sum is σ = 3936456104256. Its totient is φ = 675754526720.

The previous prime is 1691242858159. The next prime is 1691242858211. The reversal of 1691242858160 is 618582421961.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11530049 + ... + 11675808.

Almost surely, 2^{1691242858160} is an apocalyptic number.

1691242858160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1691242858160 is an abundant number, since it is smaller than the sum of its proper divisors (2245213246096).

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

1691242858160 is a wasteful number, since it uses less digits than its factorization.

1691242858160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23206781 (or 23206775 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 53.

The spelling of 1691242858160 in words is "one trillion, six hundred ninety-one billion, two hundred forty-two million, eight hundred fifty-eight thousand, one hundred sixty".