10721011635599 has 2 divisors, whose sum is σ = 10721011635600. Its totient is φ = 10721011635598.

The previous prime is 10721011635577. The next prime is 10721011635601. The reversal of 10721011635599 is 99553611012701.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10721011635599 - 2¹² = 10721011631503 is a prime.

It is a super-2 number, since 2×10721011635599² (a number of 27 digits) contains 22 as substring.

Together with 10721011635601, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10721013635599) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5360505817799 + 5360505817800.

It is an arithmetic number, because the mean of its divisors is an integer number (5360505817800).

Almost surely, 2^{10721011635599} is an apocalyptic number.

10721011635599 is a deficient number, since it is larger than the sum of its proper divisors (1).

10721011635599 is an equidigital number, since it uses as much as digits as its factorization.

10721011635599 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 510300, while the sum is 50.

The spelling of 10721011635599 in words is "ten trillion, seven hundred twenty-one billion, eleven million, six hundred thirty-five thousand, five hundred ninety-nine".