1065081918 has 32 divisors (see below), whose sum is σ = 2142201600. Its totient is φ = 353028096.

The previous prime is 1065081893. The next prime is 1065081929. The reversal of 1065081918 is 8191805601.

It is a super-2 number, since 2×1065081918² = 2268798984101117448, 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 15 ways as a sum of consecutive naturals, for example, 1384638 + ... + 1385406.

It is an arithmetic number, because the mean of its divisors is an integer number (66943800).

Almost surely, 2^1065081918 is an apocalyptic number.

1065081918 is an abundant number, since it is smaller than the sum of its proper divisors (1077119682).

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

1065081918 is a wasteful number, since it uses less digits than its factorization.

1065081918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1776.

The product of its (nonzero) digits is 17280, while the sum is 39.

The square root of 1065081918 is about 32635.5928090789. The cubic root of 1065081918 is about 1021.2396557897.

The spelling of 1065081918 in words is "one billion, sixty-five million, eighty-one thousand, nine hundred eighteen".