10721255615771 has 8 divisors (see below), whose sum is σ = 10925786287584. Its totient is φ = 10516808011840.

The previous prime is 10721255615747. The next prime is 10721255615797. The reversal of 10721255615771 is 17751655212701.

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 10721255615771 - 2¹⁰ = 10721255614747 is a prime.

It is a super-2 number, since 2×10721255615771² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10721255615701) 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, 20506346 + ... + 21022671.

It is an arithmetic number, because the mean of its divisors is an integer number (1365723285948).

Almost surely, 2^{10721255615771} is an apocalyptic number.

10721255615771 is a deficient number, since it is larger than the sum of its proper divisors (204530671813).

10721255615771 is an equidigital number, since it uses as much as digits as its factorization.

10721255615771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41533941.

The product of its (nonzero) digits is 1029000, while the sum is 50.

The spelling of 10721255615771 in words is "ten trillion, seven hundred twenty-one billion, two hundred fifty-five million, six hundred fifteen thousand, seven hundred seventy-one".