1065509994 has 8 divisors (see below), whose sum is σ = 2131020000. Its totient is φ = 355169996.

The previous prime is 1065509953. The next prime is 1065510013. The reversal of 1065509994 is 4999055601.

1065509994 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

1065509994 is an admirable number.

It is a super-2 number, since 2×1065509994² = 2270623094627760072, which contains 22 as substring.

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, 88792494 + ... + 88792505.

It is an arithmetic number, because the mean of its divisors is an integer number (266377500).

Almost surely, 2^1065509994 is an apocalyptic number.

1065509994 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1065509994 is a wasteful number, since it uses less digits than its factorization.

1065509994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177585004.

The product of its (nonzero) digits is 437400, while the sum is 48.

The square root of 1065509994 is about 32642.1505725343. The cubic root of 1065509994 is about 1021.3764557935.

The spelling of 1065509994 in words is "one billion, sixty-five million, five hundred nine thousand, nine hundred ninety-four".