10721601655701 has 8 divisors (see below), whose sum is σ = 14295539294400. Its totient is φ = 7147699227072.

The previous prime is 10721601655663. The next prime is 10721601655717. The reversal of 10721601655701 is 10755610612701.

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

It is not a de Polignac number, because 10721601655701 - 2⁹ = 10721601655189 is a prime.

It is a super-2 number, since 2×10721601655701² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10721601655901) 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, 8083620 + ... + 9316013.

It is an arithmetic number, because the mean of its divisors is an integer number (1786942411800).

Almost surely, 2^{10721601655701} is an apocalyptic number.

It is an amenable number.

10721601655701 is a deficient number, since it is larger than the sum of its proper divisors (3573937638699).

10721601655701 is a wasteful number, since it uses less digits than its factorization.

10721601655701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17605035.

The product of its (nonzero) digits is 88200, while the sum is 42.

The spelling of 10721601655701 in words is "ten trillion, seven hundred twenty-one billion, six hundred one million, six hundred fifty-five thousand, seven hundred one".