6342004407661 has 4 divisors (see below), whose sum is σ = 6829850900572. Its totient is φ = 5854157914752.

The previous prime is 6342004407619. The next prime is 6342004407689. The reversal of 6342004407661 is 1667044002436.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 787469886025 + 5554534521636 = 887395^2 + 2356806^2 .

It is a cyclic number.

It is not a de Polignac number, because 6342004407661 - 2⁹ = 6342004407149 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 (6342004407061) 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, 243923246436 + ... + 243923246461.

It is an arithmetic number, because the mean of its divisors is an integer number (1707462725143).

Almost surely, 2^{6342004407661} is an apocalyptic number.

It is an amenable number.

6342004407661 is a deficient number, since it is larger than the sum of its proper divisors (487846492911).

6342004407661 is a wasteful number, since it uses less digits than its factorization.

6342004407661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 487846492910.

The product of its (nonzero) digits is 580608, while the sum is 43.

The spelling of 6342004407661 in words is "six trillion, three hundred forty-two billion, four million, four hundred seven thousand, six hundred sixty-one".