10621666723 has 8 divisors (see below), whose sum is σ = 10865270592. Its totient is φ = 10378796736.

The previous prime is 10621666711. The next prime is 10621666733. The reversal of 10621666723 is 32766612601.

10621666723 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10621666723 is a prime.

It is a super-2 number, since 2×10621666723² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10621666703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 154140 + ... + 212137.

It is an arithmetic number, because the mean of its divisors is an integer number (1358158824).

Almost surely, 2^10621666723 is an apocalyptic number.

10621666723 is a deficient number, since it is larger than the sum of its proper divisors (243603869).

10621666723 is an equidigital number, since it uses as much as digits as its factorization.

10621666723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366941.

The product of its (nonzero) digits is 108864, while the sum is 40.

The spelling of 10621666723 in words is "ten billion, six hundred twenty-one million, six hundred sixty-six thousand, seven hundred twenty-three".