10664256642042 has 16 divisors (see below), whose sum is σ = 21417753928320. Its totient is φ = 3539878773312.

The previous prime is 10664256641999. The next prime is 10664256642047. The reversal of 10664256642042 is 24024665246601.

It is a happy number.

It is a super-2 number, since 2×10664256642042² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10664256641982 and 10664256642000.

It is not an unprimeable number, because it can be changed into a prime (10664256642047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3718358623 + ... + 3718361490.

It is an arithmetic number, because the mean of its divisors is an integer number (1338609620520).

Almost surely, 2^{10664256642042} is an apocalyptic number.

10664256642042 is an abundant number, since it is smaller than the sum of its proper divisors (10753497286278).

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

10664256642042 is a wasteful number, since it uses less digits than its factorization.

10664256642042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7436720357.

The product of its (nonzero) digits is 3317760, while the sum is 48.

The spelling of 10664256642042 in words is "ten trillion, six hundred sixty-four billion, two hundred fifty-six million, six hundred forty-two thousand, forty-two".