6661150510155 has 16 divisors (see below), whose sum is σ = 10692556917504. Its totient is φ = 3541041571680.

The previous prime is 6661150510129. The next prime is 6661150510169. The reversal of 6661150510155 is 5510150511666.

6661150510155 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 6661150510155 - 2⁸ = 6661150509899 is a prime.

It is a super-2 number, since 2×6661150510155² (a number of 26 digits) contains 22 as substring.

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, 723247351 + ... + 723256560.

It is an arithmetic number, because the mean of its divisors is an integer number (668284807344).

Almost surely, 2^{6661150510155} is an apocalyptic number.

6661150510155 is a deficient number, since it is larger than the sum of its proper divisors (4031406407349).

6661150510155 is a wasteful number, since it uses less digits than its factorization.

6661150510155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1446504226.

The product of its (nonzero) digits is 135000, while the sum is 42.

The spelling of 6661150510155 in words is "six trillion, six hundred sixty-one billion, one hundred fifty million, five hundred ten thousand, one hundred fifty-five".