1066361601 has 32 divisors (see below), whose sum is σ = 1545730560. Its totient is φ = 651297024.

The previous prime is 1066361587. The next prime is 1066361603. The reversal of 1066361601 is 1061636601.

It is not a de Polignac number, because 1066361601 - 2⁹ = 1066361089 is a prime.

It is a super-2 number, since 2×1066361601² = 2274254128174566402, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1066361603) 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, 830506 + ... + 831788.

It is an arithmetic number, because the mean of its divisors is an integer number (48304080).

Almost surely, 2^1066361601 is an apocalyptic number.

It is an amenable number.

1066361601 is a deficient number, since it is larger than the sum of its proper divisors (479368959).

1066361601 is a wasteful number, since it uses less digits than its factorization.

1066361601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1725.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 1066361601 is about 32655.1925579991. The cubic root of 1066361601 is about 1021.6484944465.

The spelling of 1066361601 in words is "one billion, sixty-six million, three hundred sixty-one thousand, six hundred one".