1641464066 has 16 divisors (see below), whose sum is σ = 2705361120. Its totient is φ = 740750880.

The previous prime is 1641464047. The next prime is 1641464089. The reversal of 1641464066 is 6604641461.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 265331 + ... + 271446.

It is an arithmetic number, because the mean of its divisors is an integer number (169085070).

Almost surely, 2^1641464066 is an apocalyptic number.

1641464066 is a deficient number, since it is larger than the sum of its proper divisors (1063897054).

1641464066 is a wasteful number, since it uses less digits than its factorization.

1641464066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 536929.

The product of its (nonzero) digits is 82944, while the sum is 38.

The square root of 1641464066 is about 40514.9856966530. The cubic root of 1641464066 is about 1179.6245252751.

The spelling of 1641464066 in words is "one billion, six hundred forty-one million, four hundred sixty-four thousand, sixty-six".