6650660746255 has 16 divisors (see below), whose sum is σ = 8450495644320. Its totient is φ = 5007411530752.

The previous prime is 6650660746181. The next prime is 6650660746267. The reversal of 6650660746255 is 5526470660566.

It is not a de Polignac number, because 6650660746255 - 2¹¹ = 6650660744207 is a prime.

It is a super-2 number, since 2×6650660746255² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6650660746255.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1872312 + ... + 4099618.

It is an arithmetic number, because the mean of its divisors is an integer number (528155977770).

Almost surely, 2^{6650660746255} is an apocalyptic number.

6650660746255 is a deficient number, since it is larger than the sum of its proper divisors (1799834898065).

6650660746255 is a wasteful number, since it uses less digits than its factorization.

6650660746255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2262458.

The product of its (nonzero) digits is 54432000, while the sum is 58.

The spelling of 6650660746255 in words is "six trillion, six hundred fifty billion, six hundred sixty million, seven hundred forty-six thousand, two hundred fifty-five".