4155121152 has 480 divisors, whose sum is σ = 15347684352. Its totient is φ = 1092870144.

The previous prime is 4155121141. The next prime is 4155121169. The reversal of 4155121152 is 2511215514.

It is a happy number.

4155121152 is a `hidden beast` number, since 41 + 551 + 21 + 1 + 52 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11321673 + ... + 11322039.

Almost surely, 2^4155121152 is an apocalyptic number.

4155121152 is a gapful number since it is divisible by the number (42) 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 4155121152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7673842176).

4155121152 is an abundant number, since it is smaller than the sum of its proper divisors (11192563200).

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

4155121152 is an equidigital number, since it uses as much as digits as its factorization.

4155121152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420 (or 392 counting only the distinct ones).

The product of its digits is 2000, while the sum is 27.

The square root of 4155121152 is about 64460.2292270203. The cubic root of 4155121152 is about 1607.6613231929.

Adding to 4155121152 its reverse (2511215514), we get a palindrome (6666336666).

The spelling of 4155121152 in words is "four billion, one hundred fifty-five million, one hundred twenty-one thousand, one hundred fifty-two".