6601261521104 has 40 divisors (see below), whose sum is σ = 12807411799968. Its totient is φ = 3296124191360.

The previous prime is 6601261521089. The next prime is 6601261521149. The reversal of 6601261521104 is 4011251621066.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99104099 + ... + 99170685.

Almost surely, 2^{6601261521104} is an apocalyptic number.

It is an amenable number.

6601261521104 is a deficient number, since it is larger than the sum of its proper divisors (6206150278864).

6601261521104 is a wasteful number, since it uses less digits than its factorization.

6601261521104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74963 (or 74957 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 35.

The spelling of 6601261521104 in words is "six trillion, six hundred one billion, two hundred sixty-one million, five hundred twenty-one thousand, one hundred four".