4255666624044 has 120 divisors (see below), whose sum is σ = 12138537024768. Its totient is φ = 1289382766560.

The previous prime is 4255666624039. The next prime is 4255666624061. The reversal of 4255666624044 is 4404266665524.

It is a super-2 number, since 2×4255666624044² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 22168737 + ... + 22359879.

Almost surely, 2^{4255666624044} is an apocalyptic number.

4255666624044 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4255666624044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6069268512384).

4255666624044 is an abundant number, since it is smaller than the sum of its proper divisors (7882870400724).

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

4255666624044 is a wasteful number, since it uses less digits than its factorization.

4255666624044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197417 (or 197406 counting only the distinct ones).

The product of its (nonzero) digits is 33177600, while the sum is 54.

The spelling of 4255666624044 in words is "four trillion, two hundred fifty-five billion, six hundred sixty-six million, six hundred twenty-four thousand, forty-four".