1065551115 has 16 divisors (see below), whose sum is σ = 1714740768. Its totient is φ = 565007616.

The previous prime is 1065551101. The next prime is 1065551117. The reversal of 1065551115 is 5111555601.

It is not a de Polignac number, because 1065551115 - 2⁵ = 1065551083 is a prime.

It is a super-2 number, since 2×1065551115² = 2270798357355486450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1065551117) 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, 202714 + ... + 207903.

It is an arithmetic number, because the mean of its divisors is an integer number (107171298).

Almost surely, 2^1065551115 is an apocalyptic number.

1065551115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1065551115 is a deficient number, since it is larger than the sum of its proper divisors (649189653).

1065551115 is a wasteful number, since it uses less digits than its factorization.

1065551115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410798.

The product of its (nonzero) digits is 3750, while the sum is 30.

The square root of 1065551115 is about 32642.7804422356. The cubic root of 1065551115 is about 1021.3895948791.

The spelling of 1065551115 in words is "one billion, sixty-five million, five hundred fifty-one thousand, one hundred fifteen".