2066172315 has 16 divisors (see below), whose sum is σ = 3395224608. Its totient is φ = 1072175616.

The previous prime is 2066172307. The next prime is 2066172323. The reversal of 2066172315 is 5132716602.

2066172315 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2066172307) and next prime (2066172323).

It is not a de Polignac number, because 2066172315 - 2³ = 2066172307 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1860862 + ... + 1861971.

It is an arithmetic number, because the mean of its divisors is an integer number (212201538).

Almost surely, 2^2066172315 is an apocalyptic number.

2066172315 is a deficient number, since it is larger than the sum of its proper divisors (1329052293).

2066172315 is a wasteful number, since it uses less digits than its factorization.

2066172315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3722878.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 2066172315 is about 45455.1681880070. The cubic root of 2066172315 is about 1273.6658740048.

Adding to 2066172315 its reverse (5132716602), we get a palindrome (7198888917).

The spelling of 2066172315 in words is "two billion, sixty-six million, one hundred seventy-two thousand, three hundred fifteen".