6515601055572 has 96 divisors (see below), whose sum is σ = 18553880862720. Its totient is φ = 1739426290560.

The previous prime is 6515601055429. The next prime is 6515601055577. The reversal of 6515601055572 is 2755501065156.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6515601055577) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43065018 + ... + 43216049.

It is an arithmetic number, because the mean of its divisors is an integer number (193269592320).

Almost surely, 2^{6515601055572} is an apocalyptic number.

6515601055572 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

6515601055572 is an abundant number, since it is smaller than the sum of its proper divisors (12038279807148).

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

6515601055572 is a wasteful number, since it uses less digits than its factorization.

6515601055572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86281141 (or 86281139 counting only the distinct ones).

The product of its (nonzero) digits is 1575000, while the sum is 48.

The spelling of 6515601055572 in words is "six trillion, five hundred fifteen billion, six hundred one million, fifty-five thousand, five hundred seventy-two".