3445772566 has 4 divisors (see below), whose sum is σ = 5168658852. Its totient is φ = 1722886282.

The previous prime is 3445772563. The next prime is 3445772587. The reversal of 3445772566 is 6652775443.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6652775443 = 83 ⋅80153921.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3445772563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 861443140 + ... + 861443143.

It is an arithmetic number, because the mean of its divisors is an integer number (1292164713).

Almost surely, 2^3445772566 is an apocalyptic number.

3445772566 is a deficient number, since it is larger than the sum of its proper divisors (1722886286).

3445772566 is a wasteful number, since it uses less digits than its factorization.

3445772566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1722886285.

The product of its digits is 4233600, while the sum is 49.

The square root of 3445772566 is about 58700.7032836916. The cubic root of 3445772566 is about 1510.4123789270.

The spelling of 3445772566 in words is "three billion, four hundred forty-five million, seven hundred seventy-two thousand, five hundred sixty-six".