1649819996160 has 624 divisors, whose sum is σ = 6225568370496. Its totient is φ = 371886391296.

The previous prime is 1649819996047. The next prime is 1649819996203. The reversal of 1649819996160 is 616999189461.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 219767127 + ... + 219774633.

Almost surely, 2^{1649819996160} is an apocalyptic number.

1649819996160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1649819996160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3112784185248).

1649819996160 is an abundant number, since it is smaller than the sum of its proper divisors (4575748374336).

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

1649819996160 is an equidigital number, since it uses as much as digits as its factorization.

1649819996160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7626 (or 7597 counting only the distinct ones).

The product of its (nonzero) digits is 45349632, while the sum is 69.

The spelling of 1649819996160 in words is "one trillion, six hundred forty-nine billion, eight hundred nineteen million, nine hundred ninety-six thousand, one hundred sixty".