3145772066 has 4 divisors (see below), whose sum is σ = 4718658102. Its totient is φ = 1572886032.

The previous prime is 3145772059. The next prime is 3145772111. The reversal of 3145772066 is 6602775413.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2816531041 + 329241025 = 53071^2 + 18145^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 786443015 + ... + 786443018.

Almost surely, 2^3145772066 is an apocalyptic number.

3145772066 is a deficient number, since it is larger than the sum of its proper divisors (1572886036).

3145772066 is a wasteful number, since it uses less digits than its factorization.

3145772066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1572886035.

The product of its (nonzero) digits is 211680, while the sum is 41.

The square root of 3145772066 is about 56087.1827247545. The cubic root of 3145772066 is about 1465.2410722031.

The spelling of 3145772066 in words is "three billion, one hundred forty-five million, seven hundred seventy-two thousand, sixty-six".