10643504546664 has 192 divisors, whose sum is σ = 32473067028480. Its totient is φ = 3120114384000.

The previous prime is 10643504546657. The next prime is 10643504546677. The reversal of 10643504546664 is 46664540534601.

It is a super-2 number, since 2×10643504546664² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10643504546664.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 67857049 + ... + 68013719.

It is an arithmetic number, because the mean of its divisors is an integer number (169130557440).

Almost surely, 2^{10643504546664} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10643504546664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16236533514240).

10643504546664 is an abundant number, since it is smaller than the sum of its proper divisors (21829562481816).

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

10643504546664 is a wasteful number, since it uses less digits than its factorization.

10643504546664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159492 (or 159485 counting only the distinct ones).

The product of its (nonzero) digits is 24883200, while the sum is 54.

The spelling of 10643504546664 in words is "ten trillion, six hundred forty-three billion, five hundred four million, five hundred forty-six thousand, six hundred sixty-four".