6601212063550 has 48 divisors (see below), whose sum is σ = 13225781620800. Its totient is φ = 2436809120640.

The previous prime is 6601212063497. The next prime is 6601212063559. The reversal of 6601212063550 is 553602121066.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6601212063559) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1659259 + ... + 3994441.

It is an arithmetic number, because the mean of its divisors is an integer number (275537117100).

Almost surely, 2^{6601212063550} is an apocalyptic number.

6601212063550 is an abundant number, since it is smaller than the sum of its proper divisors (6624569557250).

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

6601212063550 is a wasteful number, since it uses less digits than its factorization.

6601212063550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2339557 (or 2339552 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 37.

The spelling of 6601212063550 in words is "six trillion, six hundred one billion, two hundred twelve million, sixty-three thousand, five hundred fifty".