1167271999969 has 4 divisors (see below), whose sum is σ = 1167365416644. Its totient is φ = 1167178583296.

The previous prime is 1167271999879. The next prime is 1167271999987. The reversal of 1167271999969 is 9699991727611.

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

It can be written as a sum of positive squares in 2 ways, for example, as 906707692944 + 260564307025 = 952212^2 + 510455^2 .

It is a cyclic number.

It is not a de Polignac number, because 1167271999969 - 2¹³ = 1167271991777 is a prime.

It is a super-2 number, since 2×1167271999969² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1167271999895 and 1167271999904.

It is not an unprimeable number, because it can be changed into a prime (1167271999469) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46689592 + ... + 46714585.

It is an arithmetic number, because the mean of its divisors is an integer number (291841354161).

Almost surely, 2^{1167271999969} is an apocalyptic number.

It is an amenable number.

1167271999969 is a deficient number, since it is larger than the sum of its proper divisors (93416675).

1167271999969 is an equidigital number, since it uses as much as digits as its factorization.

1167271999969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93416674.

The product of its digits is 208324872, while the sum is 76.

The spelling of 1167271999969 in words is "one trillion, one hundred sixty-seven billion, two hundred seventy-one million, nine hundred ninety-nine thousand, nine hundred sixty-nine".