34644615661 has 4 divisors (see below), whose sum is σ = 34645045792. Its totient is φ = 34644185532.

The previous prime is 34644615653. The next prime is 34644615667. The reversal of 34644615661 is 16651644643.

34644615661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 34644615661 - 2³ = 34644615653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34644615667) 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, 54081 + ... + 268726.

It is an arithmetic number, because the mean of its divisors is an integer number (8661261448).

Almost surely, 2^34644615661 is an apocalyptic number.

It is an amenable number.

34644615661 is a deficient number, since it is larger than the sum of its proper divisors (430131).

34644615661 is a wasteful number, since it uses less digits than its factorization.

34644615661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430130.

The product of its digits is 1244160, while the sum is 46.

The spelling of 34644615661 in words is "thirty-four billion, six hundred forty-four million, six hundred fifteen thousand, six hundred sixty-one".