5156421120 has 360 divisors, whose sum is σ = 18604449864. Its totient is φ = 1370566656.

The previous prime is 5156421119. The next prime is 5156421169. The reversal of 5156421120 is 211246515.

5156421120 is a `hidden beast` number, since 5 + 1 + 5 + 642 + 1 + 12 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (360).

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

It is a nialpdrome in base 12.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 16796007 + ... + 16796313.

Almost surely, 2^5156421120 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5156421120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9302224932).

5156421120 is an abundant number, since it is smaller than the sum of its proper divisors (13448028744).

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

5156421120 is an frugal number, since it uses more digits than its factorization.

5156421120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354 (or 317 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 5156421120 is about 71808.2245985792. The cubic root of 5156421120 is about 1727.6249185903.

Adding to 5156421120 its reverse (211246515), we get a palindrome (5367667635).

The spelling of 5156421120 in words is "five billion, one hundred fifty-six million, four hundred twenty-one thousand, one hundred twenty".