1167345617844 has 72 divisors (see below), whose sum is σ = 3242195872608. Its totient is φ = 325770863040.

The previous prime is 1167345617839. The next prime is 1167345617849. The reversal of 1167345617844 is 4487165437611.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1167345617839) and next prime (1167345617849).

It is a super-4 number, since 4×1167345617844⁴ (a number of 49 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1167345617849) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23059387 + ... + 23109954.

Almost surely, 2^{1167345617844} is an apocalyptic number.

1167345617844 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1167345617844 is an abundant number, since it is smaller than the sum of its proper divisors (2074850254764).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1167345617844 is a wasteful number, since it uses less digits than its factorization.

1167345617844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46169405 (or 46169396 counting only the distinct ones).

The product of its digits is 13547520, while the sum is 57.

The spelling of 1167345617844 in words is "one trillion, one hundred sixty-seven billion, three hundred forty-five million, six hundred seventeen thousand, eight hundred forty-four".