1066365515 has 32 divisors (see below), whose sum is σ = 1336668480. Its totient is φ = 816076800.

The previous prime is 1066365499. The next prime is 1066365527. The reversal of 1066365515 is 5155636601.

It is not a de Polignac number, because 1066365515 - 2⁴ = 1066365499 is a prime.

It is a super-2 number, since 2×1066365515² = 2274270823162430450, which contains 22 as substring.

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 31 ways as a sum of consecutive naturals, for example, 3849557 + ... + 3849833.

It is an arithmetic number, because the mean of its divisors is an integer number (41770890).

Almost surely, 2^1066365515 is an apocalyptic number.

1066365515 is a deficient number, since it is larger than the sum of its proper divisors (270302965).

1066365515 is a wasteful number, since it uses less digits than its factorization.

1066365515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 623.

The product of its (nonzero) digits is 81000, while the sum is 38.

The square root of 1066365515 is about 32655.2524871574. The cubic root of 1066365515 is about 1021.6497444062.

The spelling of 1066365515 in words is "one billion, sixty-six million, three hundred sixty-five thousand, five hundred fifteen".