4215665124 has 144 divisors (see below), whose sum is σ = 12189864960. Its totient is φ = 1215952320.

The previous prime is 4215665119. The next prime is 4215665131.

4215665124 is a `hidden beast` number, since 4 + 21 + 566 + 51 + 24 = 666.

4215665124 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 2066497 + ... + 2068535.

It is an arithmetic number, because the mean of its divisors is an integer number (84651840).

Almost surely, 2^4215665124 is an apocalyptic number.

4215665124 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 4215665124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6094932480).

4215665124 is an abundant number, since it is smaller than the sum of its proper divisors (7974199836).

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

4215665124 is a wasteful number, since it uses less digits than its factorization.

4215665124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2310 (or 2305 counting only the distinct ones).

The product of its digits is 57600, while the sum is 36.

The square root of 4215665124 is about 64928.1535545252. The cubic root of 4215665124 is about 1615.4320747396.

The spelling of 4215665124 in words is "four billion, two hundred fifteen million, six hundred sixty-five thousand, one hundred twenty-four".