1163145042564 has 24 divisors (see below), whose sum is σ = 2714032013280. Its totient is φ = 387711169344.

The previous prime is 1163145042539. The next prime is 1163145042571. The reversal of 1163145042564 is 4652405413611.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 950307 + ... + 1797045.

It is an arithmetic number, because the mean of its divisors is an integer number (113084667220).

Almost surely, 2^{1163145042564} is an apocalyptic number.

It is an amenable number.

1163145042564 is an abundant number, since it is smaller than the sum of its proper divisors (1550886970716).

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

1163145042564 is a wasteful number, since it uses less digits than its factorization.

1163145042564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 961219 (or 961217 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 42.

The spelling of 1163145042564 in words is "one trillion, one hundred sixty-three billion, one hundred forty-five million, forty-two thousand, five hundred sixty-four".