6661034007 has 4 divisors (see below), whose sum is σ = 8881378680. Its totient is φ = 4440689336.

The previous prime is 6661033991. The next prime is 6661034021. The reversal of 6661034007 is 7004301666.

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

It is a cyclic number.

It is not a de Polignac number, because 6661034007 - 2⁴ = 6661033991 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6661034047) 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, 1110172332 + ... + 1110172337.

It is an arithmetic number, because the mean of its divisors is an integer number (2220344670).

Almost surely, 2^6661034007 is an apocalyptic number.

6661034007 is a deficient number, since it is larger than the sum of its proper divisors (2220344673).

6661034007 is a wasteful number, since it uses less digits than its factorization.

6661034007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2220344672.

The product of its (nonzero) digits is 18144, while the sum is 33.

The square root of 6661034007 is about 81615.1579487536. The cubic root of 6661034007 is about 1881.5418548429.

The spelling of 6661034007 in words is "six billion, six hundred sixty-one million, thirty-four thousand, seven".