2066620474 has 4 divisors (see below), whose sum is σ = 3099930714. Its totient is φ = 1033310236.

The previous prime is 2066620471. The next prime is 2066620513. The reversal of 2066620474 is 4740266602.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4740266602 = 2 ⋅2370133301.

It can be written as a sum of positive squares in only one way, i.e., 2034641449 + 31979025 = 45107^2 + 5655^2 .

It is not an unprimeable number, because it can be changed into a prime (2066620471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 516655117 + ... + 516655120.

Almost surely, 2^2066620474 is an apocalyptic number.

2066620474 is a deficient number, since it is larger than the sum of its proper divisors (1033310240).

2066620474 is a wasteful number, since it uses less digits than its factorization.

2066620474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1033310239.

The product of its (nonzero) digits is 96768, while the sum is 37.

The square root of 2066620474 is about 45460.0976021829. The cubic root of 2066620474 is about 1273.7579546693.

The spelling of 2066620474 in words is "two billion, sixty-six million, six hundred twenty thousand, four hundred seventy-four".