4145556996 has 225 divisors, whose sum is σ = 12818331141. Its totient is φ = 1168219584.

The previous prime is 4145556991. The next prime is 4145557033. The reversal of 4145556996 is 6996555414.

The square root of 4145556996 is 64386.

It is a perfect power (a square), and thus also a powerful number.

4145556996 is a `hidden beast` number, since 41 + 45 + 556 + 9 + 9 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2353220100 + 1792336896 = 48510^2 + 42336^2 .

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

It is not an unprimeable number, because it can be changed into a prime (4145556991) by changing a digit.

It is a polite number, since it can be written in 74 ways as a sum of consecutive naturals, for example, 56788416 + ... + 56788488.

Almost surely, 2^4145556996 is an apocalyptic number.

4145556996 is the 64386-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4145556996

4145556996 is an abundant number, since it is smaller than the sum of its proper divisors (8672774145).

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

4145556996 is an frugal number, since it uses more digits than its factorization.

4145556996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190 (or 85 counting only the distinct ones).

The product of its digits is 5832000, while the sum is 54.

The cubic root of 4145556996 is about 1606.4268837670.

The spelling of 4145556996 in words is "four billion, one hundred forty-five million, five hundred fifty-six thousand, nine hundred ninety-six".