1166123323157 has 8 divisors (see below), whose sum is σ = 1257778197984. Its totient is φ = 1074747459888.

The previous prime is 1166123323153. The next prime is 1166123323159. The reversal of 1166123323157 is 7513233216611.

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 1166123323157 - 2² = 1166123323153 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1166123323153) 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, 69744203 + ... + 69760920.

It is an arithmetic number, because the mean of its divisors is an integer number (157222274748).

Almost surely, 2^{1166123323157} is an apocalyptic number.

It is an amenable number.

1166123323157 is a deficient number, since it is larger than the sum of its proper divisors (91654874827).

1166123323157 is a wasteful number, since it uses less digits than its factorization.

1166123323157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139505779.

The product of its digits is 136080, while the sum is 41.

Adding to 1166123323157 its reverse (7513233216611), we get a palindrome (8679356539768).

The spelling of 1166123323157 in words is "one trillion, one hundred sixty-six billion, one hundred twenty-three million, three hundred twenty-three thousand, one hundred fifty-seven".