7101661291728 has 80 divisors (see below), whose sum is σ = 18442843588416. Its totient is φ = 2354721546240.

The previous prime is 7101661291709. The next prime is 7101661291763. The reversal of 7101661291728 is 8271921661017.

It is a congruent number.

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, 110867326 + ... + 110931362.

Almost surely, 2^{7101661291728} is an apocalyptic number.

It is an amenable number.

7101661291728 is an abundant number, since it is smaller than the sum of its proper divisors (11341182296688).

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

7101661291728 is a wasteful number, since it uses less digits than its factorization.

7101661291728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76212 (or 76206 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 51.

The spelling of 7101661291728 in words is "seven trillion, one hundred one billion, six hundred sixty-one million, two hundred ninety-one thousand, seven hundred twenty-eight".