6545166156 has 18 divisors (see below), whose sum is σ = 16544725652. Its totient is φ = 2181722040.

The previous prime is 6545166127. The next prime is 6545166161. The reversal of 6545166156 is 6516615456.

It is a tau number, because it is divible by the number of its divisors (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 90905050 + ... + 90905121.

Almost surely, 2^6545166156 is an apocalyptic number.

It is an amenable number.

6545166156 is an abundant number, since it is smaller than the sum of its proper divisors (9999559496).

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

6545166156 is a wasteful number, since it uses less digits than its factorization.

6545166156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181810181 (or 181810176 counting only the distinct ones).

The product of its digits is 648000, while the sum is 45.

The square root of 6545166156 is about 80902.2011814265. The cubic root of 6545166156 is about 1870.5682503837.

The spelling of 6545166156 in words is "six billion, five hundred forty-five million, one hundred sixty-six thousand, one hundred fifty-six".