11661628158935 has 8 divisors (see below), whose sum is σ = 13995138484800. Its totient is φ = 9328512731104.

The previous prime is 11661628158931. The next prime is 11661628158979. The reversal of 11661628158935 is 53985182616611.

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 11661628158935 - 2² = 11661628158931 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11661628158931) 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, 98659535 + ... + 98777664.

It is an arithmetic number, because the mean of its divisors is an integer number (1749392310600).

Almost surely, 2^{11661628158935} is an apocalyptic number.

11661628158935 is a deficient number, since it is larger than the sum of its proper divisors (2333510325865).

11661628158935 is a wasteful number, since it uses less digits than its factorization.

11661628158935 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197449017.

The product of its digits is 18662400, while the sum is 62.

The spelling of 11661628158935 in words is "eleven trillion, six hundred sixty-one billion, six hundred twenty-eight million, one hundred fifty-eight thousand, nine hundred thirty-five".