1640990173414 has 8 divisors (see below), whose sum is σ = 2461497527808. Its totient is φ = 820490997480.

The previous prime is 1640990173399. The next prime is 1640990173463. The reversal of 1640990173414 is 4143710990461.

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, 1515622 + ... + 2362009.

It is an arithmetic number, because the mean of its divisors is an integer number (307687190976).

Almost surely, 2^{1640990173414} is an apocalyptic number.

1640990173414 is a deficient number, since it is larger than the sum of its proper divisors (820507354394).

1640990173414 is a wasteful number, since it uses less digits than its factorization.

1640990173414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4089230.

The product of its (nonzero) digits is 653184, while the sum is 49.

The spelling of 1640990173414 in words is "one trillion, six hundred forty billion, nine hundred ninety million, one hundred seventy-three thousand, four hundred fourteen".