10645633256502 has 16 divisors (see below), whose sum is σ = 21810565696752. Its totient is φ = 3461994554880.

The previous prime is 10645633256471. The next prime is 10645633256509. The reversal of 10645633256502 is 20565233654601.

It is a happy number.

It is a super-2 number, since 2×10645633256502² (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 (10645633256509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21637465723 + ... + 21637466214.

It is an arithmetic number, because the mean of its divisors is an integer number (1363160356047).

Almost surely, 2^{10645633256502} is an apocalyptic number.

10645633256502 is an abundant number, since it is smaller than the sum of its proper divisors (11164932440250).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10645633256502 is a wasteful number, since it uses less digits than its factorization.

10645633256502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43274931983.

The product of its (nonzero) digits is 3888000, while the sum is 48.

The spelling of 10645633256502 in words is "ten trillion, six hundred forty-five billion, six hundred thirty-three million, two hundred fifty-six thousand, five hundred two".