6505002155120 has 80 divisors (see below), whose sum is σ = 18194442147840. Its totient is φ = 2112902952192.

The previous prime is 6505002155083. The next prime is 6505002155123. The reversal of 6505002155120 is 215512005056.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6505002155123) 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, 305675552 + ... + 305696831.

It is an arithmetic number, because the mean of its divisors is an integer number (227430526848).

Almost surely, 2^{6505002155120} is an apocalyptic number.

It is an amenable number.

6505002155120 is an abundant number, since it is smaller than the sum of its proper divisors (11689439992720).

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

6505002155120 is a wasteful number, since it uses less digits than its factorization.

6505002155120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 611372422 (or 611372416 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 32.

The spelling of 6505002155120 in words is "six trillion, five hundred five billion, two million, one hundred fifty-five thousand, one hundred twenty".