1167961790129 has 4 divisors (see below), whose sum is σ = 1178677036020. Its totient is φ = 1157246544240.

The previous prime is 1167961790111. The next prime is 1167961790207. The reversal of 1167961790129 is 9210971697611.

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 316577273104 + 851384517025 = 562652^2 + 922705^2 .

It is a cyclic number.

It is not a de Polignac number, because 1167961790129 - 2⁴⁰ = 68450162353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1167961796129) 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, 5357622782 + ... + 5357622999.

It is an arithmetic number, because the mean of its divisors is an integer number (294669259005).

Almost surely, 2^{1167961790129} is an apocalyptic number.

It is an amenable number.

1167961790129 is a deficient number, since it is larger than the sum of its proper divisors (10715245891).

1167961790129 is a wasteful number, since it uses less digits than its factorization.

1167961790129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10715245890.

The product of its (nonzero) digits is 2571912, while the sum is 59.

The spelling of 1167961790129 in words is "one trillion, one hundred sixty-seven billion, nine hundred sixty-one million, seven hundred ninety thousand, one hundred twenty-nine".