6656610661151 has 8 divisors (see below), whose sum is σ = 7271999346000. Its totient is φ = 6042929019840.

The previous prime is 6656610661147. The next prime is 6656610661249. The reversal of 6656610661151 is 1511660166566.

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 6656610661151 - 2² = 6656610661147 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6656610661151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6656610661651) 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, 426752726 + ... + 426768323.

It is an arithmetic number, because the mean of its divisors is an integer number (908999918250).

Almost surely, 2^{6656610661151} is an apocalyptic number.

6656610661151 is a deficient number, since it is larger than the sum of its proper divisors (615388684849).

6656610661151 is a wasteful number, since it uses less digits than its factorization.

6656610661151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 853521769.

The product of its (nonzero) digits is 1166400, while the sum is 50.

The spelling of 6656610661151 in words is "six trillion, six hundred fifty-six billion, six hundred ten million, six hundred sixty-one thousand, one hundred fifty-one".