6663637126061 has 8 divisors (see below), whose sum is σ = 7048611994560. Its totient is φ = 6286599883872.

The previous prime is 6663637126039. The next prime is 6663637126067. The reversal of 6663637126061 is 1606217363666.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6663637126061 - 2²² = 6663632931757 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6663637125994 and 6663637126012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6663637126067) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1984404851 + ... + 1984408208.

It is an arithmetic number, because the mean of its divisors is an integer number (881076499320).

Almost surely, 2^{6663637126061} is an apocalyptic number.

It is an amenable number.

6663637126061 is a deficient number, since it is larger than the sum of its proper divisors (384974868499).

6663637126061 is a wasteful number, since it uses less digits than its factorization.

6663637126061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3968813155.

The product of its (nonzero) digits is 5878656, while the sum is 53.

The spelling of 6663637126061 in words is "six trillion, six hundred sixty-three billion, six hundred thirty-seven million, one hundred twenty-six thousand, sixty-one".