8543145653956 has 27 divisors (see below), whose sum is σ = 15448664180943. Its totient is φ = 4133692469160.

The previous prime is 8543145653941. The next prime is 8543145653957. The reversal of 8543145653956 is 6593565413458.

It is a happy number.

The square root of 8543145653956 is 2922866.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8543145653957) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 181194121 + ... + 181241263.

Almost surely, 2^{8543145653956} is an apocalyptic number.

8543145653956 is the 2922866-th square number.

It is an amenable number.

8543145653956 is a deficient number, since it is larger than the sum of its proper divisors (6905518526987).

8543145653956 is an frugal number, since it uses more digits than its factorization.

8543145653956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94352 (or 47176 counting only the distinct ones).

The product of its digits is 233280000, while the sum is 64.

Multiplying 8543145653956 by its sum of digits (64), we get a square (546761321853184 = 23382928²).

The spelling of 8543145653956 in words is "eight trillion, five hundred forty-three billion, one hundred forty-five million, six hundred fifty-three thousand, nine hundred fifty-six".