4056402400066 has 16 divisors (see below), whose sum is σ = 6349215513024. Its totient is φ = 1939999004944.

The previous prime is 4056402400007. The next prime is 4056402400067. The reversal of 4056402400066 is 6600042046504.

It is a super-2 number, since 2×4056402400066² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4056402399998 and 4056402400034.

It is not an unprimeable number, because it can be changed into a prime (4056402400067) by changing a digit.

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, 4853925 + ... + 5627911.

It is an arithmetic number, because the mean of its divisors is an integer number (396825969564).

Almost surely, 2^{4056402400066} is an apocalyptic number.

4056402400066 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

4056402400066 is a deficient number, since it is larger than the sum of its proper divisors (2292813112958).

4056402400066 is a wasteful number, since it uses less digits than its factorization.

4056402400066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 887945.

The product of its (nonzero) digits is 138240, while the sum is 37.

The spelling of 4056402400066 in words is "four trillion, fifty-six billion, four hundred two million, four hundred thousand, sixty-six".