6121536020 has 48 divisors (see below), whose sum is σ = 13443712128. Its totient is φ = 2336991360.

The previous prime is 6121535983. The next prime is 6121536059. The reversal of 6121536020 is 206351216.

It is a congruent number.

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, 197627 + ... + 226493.

It is an arithmetic number, because the mean of its divisors is an integer number (280077336).

Almost surely, 2^6121536020 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 6121536020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6721856064).

6121536020 is an abundant number, since it is smaller than the sum of its proper divisors (7322176108).

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

6121536020 is a wasteful number, since it uses less digits than its factorization.

6121536020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29360 (or 29358 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 6121536020 is about 78240.2455261996. The cubic root of 6121536020 is about 1829.3078712801.

Adding to 6121536020 its reverse (206351216), we get a palindrome (6327887236).

The spelling of 6121536020 in words is "six billion, one hundred twenty-one million, five hundred thirty-six thousand, twenty".