1066066617 has 32 divisors (see below), whose sum is σ = 1876414464. Its totient is φ = 521222400.

The previous prime is 1066066613. The next prime is 1066066619. The reversal of 1066066617 is 7166606601.

It is not a de Polignac number, because 1066066617 - 2² = 1066066613 is a prime.

It is a super-2 number, since 2×1066066617² = 2272996063763649378, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1066066613) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 131809 + ... + 139662.

It is an arithmetic number, because the mean of its divisors is an integer number (58637952).

Almost surely, 2^1066066617 is an apocalyptic number.

1066066617 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1066066617 is a deficient number, since it is larger than the sum of its proper divisors (810347847).

1066066617 is a wasteful number, since it uses less digits than its factorization.

1066066617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271509.

The product of its (nonzero) digits is 54432, while the sum is 39.

The square root of 1066066617 is about 32650.6755979107. The cubic root of 1066066617 is about 1021.5542807037.

It can be divided in two parts, 10660 and 66617, that added together give a palindrome (77277).

The spelling of 1066066617 in words is "one billion, sixty-six million, sixty-six thousand, six hundred seventeen".