1166254402162 has 4 divisors (see below), whose sum is σ = 1749381603246. Its totient is φ = 583127201080.

The previous prime is 1166254402153. The next prime is 1166254402231. The reversal of 1166254402162 is 2612044526611.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 736457465241 + 429796936921 = 858171^2 + 655589^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 291563600539 + ... + 291563600542.

Almost surely, 2^{1166254402162} is an apocalyptic number.

1166254402162 is a deficient number, since it is larger than the sum of its proper divisors (583127201084).

1166254402162 is an equidigital number, since it uses as much as digits as its factorization.

1166254402162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 583127201083.

The product of its (nonzero) digits is 138240, while the sum is 40.

Adding to 1166254402162 its reverse (2612044526611), we get a palindrome (3778298928773).

The spelling of 1166254402162 in words is "one trillion, one hundred sixty-six billion, two hundred fifty-four million, four hundred two thousand, one hundred sixty-two".