1066105915 has 16 divisors (see below), whose sum is σ = 1472766912. Its totient is φ = 725704704.

The previous prime is 1066105907. The next prime is 1066105919. The reversal of 1066105915 is 5195016601.

It is a cyclic number.

It is not a de Polignac number, because 1066105915 - 2³ = 1066105907 is a prime.

It is a super-2 number, since 2×1066105915² = 2273163643995974450, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1066105919) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106374 + ... + 115963.

It is an arithmetic number, because the mean of its divisors is an integer number (92047932).

Almost surely, 2^1066105915 is an apocalyptic number.

1066105915 is a deficient number, since it is larger than the sum of its proper divisors (406660997).

1066105915 is a wasteful number, since it uses less digits than its factorization.

1066105915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222486.

The product of its (nonzero) digits is 8100, while the sum is 34.

The square root of 1066105915 is about 32651.2773869569. The cubic root of 1066105915 is about 1021.5668329358.

The spelling of 1066105915 in words is "one billion, sixty-six million, one hundred five thousand, nine hundred fifteen".