6121554432 has 160 divisors (see below), whose sum is σ = 18788892672. Its totient is φ = 1734856704.

The previous prime is 6121554427. The next prime is 6121554451. The reversal of 6121554432 is 2344551216.

It is a junction number, because it is equal to n+sod(n) for n = 6121554393 and 6121554402.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1363263 + ... + 1367745.

Almost surely, 2^6121554432 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 6121554432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9394446336).

6121554432 is an abundant number, since it is smaller than the sum of its proper divisors (12667338240).

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

6121554432 is a wasteful number, since it uses less digits than its factorization.

6121554432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4638 (or 4622 counting only the distinct ones).

The product of its digits is 28800, while the sum is 33.

The square root of 6121554432 is about 78240.3631893411. The cubic root of 6121554432 is about 1829.3097053069.

The spelling of 6121554432 in words is "six billion, one hundred twenty-one million, five hundred fifty-four thousand, four hundred thirty-two".