6545000077 has 16 divisors (see below), whose sum is σ = 8181014400. Its totient is φ = 5086866240.

The previous prime is 6545000071. The next prime is 6545000089. The reversal of 6545000077 is 7700005456.

It is a cyclic number.

It is not a de Polignac number, because 6545000077 - 2¹⁹ = 6544475789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6545000071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79302 + ... + 139207.

It is an arithmetic number, because the mean of its divisors is an integer number (511313400).

Almost surely, 2^6545000077 is an apocalyptic number.

It is an amenable number.

6545000077 is a deficient number, since it is larger than the sum of its proper divisors (1636014323).

6545000077 is a wasteful number, since it uses less digits than its factorization.

6545000077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218916.

The product of its (nonzero) digits is 29400, while the sum is 34.

The square root of 6545000077 is about 80901.1747566128. The cubic root of 6545000077 is about 1870.5524287974.

The spelling of 6545000077 in words is "six billion, five hundred forty-five million, seventy-seven", and thus it is an aban number.