1066515782 has 8 divisors (see below), whose sum is σ = 1623651096. Its totient is φ = 525298752.

The previous prime is 1066515761. The next prime is 1066515797. The reversal of 1066515782 is 2875156601.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1066515782² = 2274911826510143048, which contains 22 as substring.

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, 3979403 + ... + 3979670.

It is an arithmetic number, because the mean of its divisors is an integer number (202956387).

Almost surely, 2^1066515782 is an apocalyptic number.

1066515782 is a deficient number, since it is larger than the sum of its proper divisors (557135314).

1066515782 is an equidigital number, since it uses as much as digits as its factorization.

1066515782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7959142.

The product of its (nonzero) digits is 100800, while the sum is 41.

The square root of 1066515782 is about 32657.5532151446. The cubic root of 1066515782 is about 1021.6977307766.

The spelling of 1066515782 in words is "one billion, sixty-six million, five hundred fifteen thousand, seven hundred eighty-two".