1065981701376 has 432 divisors, whose sum is σ = 3252718909440. Its totient is φ = 335282688000.

The previous prime is 1065981701251. The next prime is 1065981701383. The reversal of 1065981701376 is 6731071895601.

1065981701376 is a `hidden beast` number, since 1 + 0 + 6 + 598 + 17 + 0 + 1 + 37 + 6 = 666.

It is a super-2 number, since 2×1065981701376² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

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 47 ways as a sum of consecutive naturals, for example, 552035131 + ... + 552037061.

It is an arithmetic number, because the mean of its divisors is an integer number (7529441920).

Almost surely, 2^{1065981701376} is an apocalyptic number.

1065981701376 is a gapful number since it is divisible by the number (16) 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 1065981701376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1626359454720).

1065981701376 is an abundant number, since it is smaller than the sum of its proper divisors (2186737208064).

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

1065981701376 is a wasteful number, since it uses less digits than its factorization.

1065981701376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2174 (or 2157 counting only the distinct ones).

The product of its (nonzero) digits is 1905120, while the sum is 54.

The spelling of 1065981701376 in words is "one trillion, sixty-five billion, nine hundred eighty-one million, seven hundred one thousand, three hundred seventy-six".