1691332796160 has 1296 divisors, whose sum is σ = 7242872678496. Its totient is φ = 362076438528.

The previous prime is 1691332796119. The next prime is 1691332796161. The reversal of 1691332796160 is 616972331961.

1691332796160 is a `hidden beast` number, since 1 + 6 + 9 + 13 + 3 + 2 + 7 + 9 + 616 + 0 = 666.

It is a super-2 number, since 2×1691332796160² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1691332796097 and 1691332796106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1691332796161) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 3233905659 + ... + 3233906181.

It is an arithmetic number, because the mean of its divisors is an integer number (5588636326).

Almost surely, 2^{1691332796160} is an apocalyptic number.

1691332796160 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 1691332796160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3621436339248).

1691332796160 is an abundant number, since it is smaller than the sum of its proper divisors (5551539882336).

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

1691332796160 is a wasteful number, since it uses less digits than its factorization.

1691332796160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 918 (or 894 counting only the distinct ones).

The product of its (nonzero) digits is 2204496, while the sum is 54.

The spelling of 1691332796160 in words is "one trillion, six hundred ninety-one billion, three hundred thirty-two million, seven hundred ninety-six thousand, one hundred sixty".