4666642426640 has 40 divisors (see below), whose sum is σ = 10855895678208. Its totient is φ = 1865632964480.

The previous prime is 4666642426639. The next prime is 4666642426769. The reversal of 4666642426640 is 466242466664.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15853346 + ... + 16145025.

Almost surely, 2^{4666642426640} is an apocalyptic number.

4666642426640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4666642426640 is an abundant number, since it is smaller than the sum of its proper divisors (6189253251568).

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

4666642426640 is a wasteful number, since it uses less digits than its factorization.

4666642426640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32000207 (or 32000201 counting only the distinct ones).

The product of its (nonzero) digits is 47775744, while the sum is 56.

The spelling of 4666642426640 in words is "four trillion, six hundred sixty-six billion, six hundred forty-two million, four hundred twenty-six thousand, six hundred forty".