10645606506621 has 8 divisors (see below), whose sum is σ = 14194258041600. Its totient is φ = 7097012988032.

The previous prime is 10645606506617. The next prime is 10645606506629. The reversal of 10645606506621 is 12660560654601.

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 10645606506621 - 2² = 10645606506617 is a prime.

It is a super-2 number, since 2×10645606506621² (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 (10645606506629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14074125 + ... + 14811218.

It is an arithmetic number, because the mean of its divisors is an integer number (1774282255200).

Almost surely, 2^{10645606506621} is an apocalyptic number.

It is an amenable number.

10645606506621 is a deficient number, since it is larger than the sum of its proper divisors (3548651534979).

10645606506621 is a wasteful number, since it uses less digits than its factorization.

10645606506621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29008195.

The product of its (nonzero) digits is 1555200, while the sum is 48.

The spelling of 10645606506621 in words is "ten trillion, six hundred forty-five billion, six hundred six million, five hundred six thousand, six hundred twenty-one".