4261606664266 has 16 divisors (see below), whose sum is σ = 7332569406720. Its totient is φ = 1819663360560.

The previous prime is 4261606664251. The next prime is 4261606664291. The reversal of 4261606664266 is 6624666061624.

It is a happy number.

It is a super-2 number, since 2×4261606664266² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

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, 561620701 + ... + 561628288.

It is an arithmetic number, because the mean of its divisors is an integer number (458285587920).

Almost surely, 2^{4261606664266} is an apocalyptic number.

4261606664266 is a deficient number, since it is larger than the sum of its proper divisors (3070962742454).

4261606664266 is a wasteful number, since it uses less digits than its factorization.

4261606664266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1123249269.

The product of its (nonzero) digits is 17915904, while the sum is 55.

The spelling of 4261606664266 in words is "four trillion, two hundred sixty-one billion, six hundred six million, six hundred sixty-four thousand, two hundred sixty-six".