1623144540568 has 16 divisors (see below), whose sum is σ = 3043484232480. Its totient is φ = 811548745248.

The previous prime is 1623144540559. The next prime is 1623144540569. The reversal of 1623144540568 is 8650454413261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1623144540569) 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, 2645655 + ... + 3200902.

It is an arithmetic number, because the mean of its divisors is an integer number (190217764530).

Almost surely, 2^{1623144540568} is an apocalyptic number.

It is an amenable number.

1623144540568 is a deficient number, since it is larger than the sum of its proper divisors (1420339691912).

1623144540568 is a wasteful number, since it uses less digits than its factorization.

1623144540568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5881266 (or 5881262 counting only the distinct ones).

The product of its (nonzero) digits is 2764800, while the sum is 49.

The spelling of 1623144540568 in words is "one trillion, six hundred twenty-three billion, one hundred forty-four million, five hundred forty thousand, five hundred sixty-eight".