1145598994567 has 4 divisors (see below), whose sum is σ = 1212987170736. Its totient is φ = 1078210818400.

The previous prime is 1145598994517. The next prime is 1145598994679. The reversal of 1145598994567 is 7654998955411.

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

It is a cyclic number.

It is not a de Polignac number, because 1145598994567 - 2⁷ = 1145598994439 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1145598994567.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145598994517) 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, 33694088059 + ... + 33694088092.

It is an arithmetic number, because the mean of its divisors is an integer number (303246792684).

Almost surely, 2^{1145598994567} is an apocalyptic number.

1145598994567 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

1145598994567 is a deficient number, since it is larger than the sum of its proper divisors (67388176169).

1145598994567 is an equidigital number, since it uses as much as digits as its factorization.

1145598994567 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67388176168.

The product of its digits is 489888000, while the sum is 73.

The spelling of 1145598994567 in words is "one trillion, one hundred forty-five billion, five hundred ninety-eight million, nine hundred ninety-four thousand, five hundred sixty-seven".