3361665623 has 4 divisors (see below), whose sum is σ = 3363759120. Its totient is φ = 3359572128.

The previous prime is 3361665617. The next prime is 3361665677. The reversal of 3361665623 is 3265661633.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3265661633 = 13 ⋅251204741.

It is a cyclic number.

It is not a de Polignac number, because 3361665623 - 2⁸ = 3361665367 is a prime.

It is a super-2 number, since 2×3361665623² = 22601591521719956258, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3361665683) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1044338 + ... + 1047551.

It is an arithmetic number, because the mean of its divisors is an integer number (840939780).

Almost surely, 2^3361665623 is an apocalyptic number.

3361665623 is a deficient number, since it is larger than the sum of its proper divisors (2093497).

3361665623 is a wasteful number, since it uses less digits than its factorization.

3361665623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2093496.

The product of its digits is 349920, while the sum is 41.

The square root of 3361665623 is about 57979.8725679869. The cubic root of 3361665623 is about 1498.0219293784.

The spelling of 3361665623 in words is "three billion, three hundred sixty-one million, six hundred sixty-five thousand, six hundred twenty-three".