3205605642007 has 8 divisors (see below), whose sum is σ = 3206583459072. Its totient is φ = 3204627982200.

The previous prime is 3205605641977. The next prime is 3205605642047. The reversal of 3205605642007 is 7002465065023.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3205605642007 is a prime.

It is a super-2 number, since 2×3205605642007² (a number of 26 digits) 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 (3205605642047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49922032 + ... + 49986202.

It is an arithmetic number, because the mean of its divisors is an integer number (400822932384).

Almost surely, 2^{3205605642007} is an apocalyptic number.

3205605642007 is a deficient number, since it is larger than the sum of its proper divisors (977817065).

3205605642007 is an equidigital number, since it uses as much as digits as its factorization.

3205605642007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78629.

The product of its (nonzero) digits is 302400, while the sum is 40.

The spelling of 3205605642007 in words is "three trillion, two hundred five billion, six hundred five million, six hundred forty-two thousand, seven".