1065771630 has 384 divisors, whose sum is σ = 3683377152. Its totient is φ = 209088000.

The previous prime is 1065771611. The next prime is 1065771653. The reversal of 1065771630 is 361775601.

1065771630 is a `hidden beast` number, since 10 + 6 + 5 + 7 + 7 + 1 + 630 = 666.

It is a super-2 number, since 2×1065771630² = 2271738334625713800, which 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 (17) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 25994410 + ... + 25994450.

It is an arithmetic number, because the mean of its divisors is an integer number (9592128).

Almost surely, 2^1065771630 is an apocalyptic number.

1065771630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1065771630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1841688576).

1065771630 is an abundant number, since it is smaller than the sum of its proper divisors (2617605522).

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

1065771630 is a wasteful number, since it uses less digits than its factorization.

1065771630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125 (or 100 counting only the distinct ones).

The product of its (nonzero) digits is 26460, while the sum is 36.

The square root of 1065771630 is about 32646.1579669032. The cubic root of 1065771630 is about 1021.4600486214.

The spelling of 1065771630 in words is "one billion, sixty-five million, seven hundred seventy-one thousand, six hundred thirty".