6553521057512 has 64 divisors (see below), whose sum is σ = 14439840105600. Its totient is φ = 2749012496640.

The previous prime is 6553521057437. The next prime is 6553521057529. The reversal of 6553521057512 is 2157501253556.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3656414 + ... + 5145522.

It is an arithmetic number, because the mean of its divisors is an integer number (225622501650).

Almost surely, 2^{6553521057512} is an apocalyptic number.

It is an amenable number.

6553521057512 is an abundant number, since it is smaller than the sum of its proper divisors (7886319048088).

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

6553521057512 is a wasteful number, since it uses less digits than its factorization.

6553521057512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1492986 (or 1492982 counting only the distinct ones).

The product of its (nonzero) digits is 1575000, while the sum is 47.

The spelling of 6553521057512 in words is "six trillion, five hundred fifty-three billion, five hundred twenty-one million, fifty-seven thousand, five hundred twelve".