655766650007 has 8 divisors (see below), whose sum is σ = 749729051136. Its totient is φ = 561874611672.

The previous prime is 655766649977. The next prime is 655766650013. The reversal of 655766650007 is 700056667556.

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

It is a cyclic number.

It is not a de Polignac number, because 655766650007 - 2⁸ = 655766649751 is a prime.

It is a super-2 number, since 2×655766650007² (a number of 24 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 (655766650027) 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, 17570723 + ... + 17608004.

It is an arithmetic number, because the mean of its divisors is an integer number (93716131392).

Almost surely, 2^655766650007 is an apocalyptic number.

655766650007 is a deficient number, since it is larger than the sum of its proper divisors (93962401129).

655766650007 is a wasteful number, since it uses less digits than its factorization.

655766650007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35181397.

The product of its (nonzero) digits is 7938000, while the sum is 53.

The spelling of 655766650007 in words is "six hundred fifty-five billion, seven hundred sixty-six million, six hundred fifty thousand, seven".