42666440402440 has 64 divisors (see below), whose sum is σ = 97434060739200. Its totient is φ = 16811550632448.

The previous prime is 42666440402401. The next prime is 42666440402447. The reversal of 42666440402440 is 4420404466624.

It is a super-2 number, since 2×42666440402440² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42666440402447) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 204966892 + ... + 205174948.

It is an arithmetic number, because the mean of its divisors is an integer number (1522407199050).

Almost surely, 2^{42666440402440} is an apocalyptic number.

42666440402440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42666440402440 is an abundant number, since it is smaller than the sum of its proper divisors (54767620336760).

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

42666440402440 is a wasteful number, since it uses less digits than its factorization.

42666440402440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284654 (or 284650 counting only the distinct ones).

The product of its (nonzero) digits is 3538944, while the sum is 46.

The spelling of 42666440402440 in words is "forty-two trillion, six hundred sixty-six billion, four hundred forty million, four hundred two thousand, four hundred forty".