6661160150557 has 8 divisors (see below), whose sum is σ = 7266743108352. Its totient is φ = 6055581016800.

The previous prime is 6661160150507. The next prime is 6661160150573. The reversal of 6661160150557 is 7550510611666.

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 6661160150557 - 2²⁷ = 6661025932829 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 6661160150557.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6661160150507) 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, 3651828 + ... + 5163154.

It is an arithmetic number, because the mean of its divisors is an integer number (908342888544).

Almost surely, 2^{6661160150557} is an apocalyptic number.

It is an amenable number.

6661160150557 is a deficient number, since it is larger than the sum of its proper divisors (605582957795).

6661160150557 is a wasteful number, since it uses less digits than its factorization.

6661160150557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1912019.

The product of its (nonzero) digits is 1134000, while the sum is 49.

The spelling of 6661160150557 in words is "six trillion, six hundred sixty-one billion, one hundred sixty million, one hundred fifty thousand, five hundred fifty-seven".