6156020440 has 32 divisors (see below), whose sum is σ = 14188880160. Its totient is φ = 2402348800.

The previous prime is 6156020417. The next prime is 6156020477. The reversal of 6156020440 is 440206516.

It is a junction number, because it is equal to n+sod(n) for n = 6156020399 and 6156020408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1875196 + ... + 1878475.

It is an arithmetic number, because the mean of its divisors is an integer number (443402505).

Almost surely, 2^6156020440 is an apocalyptic number.

It is an amenable number.

6156020440 is an abundant number, since it is smaller than the sum of its proper divisors (8032859720).

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

6156020440 is a wasteful number, since it uses less digits than its factorization.

6156020440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3753723 (or 3753719 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 6156020440 is about 78460.3112407796. The cubic root of 6156020440 is about 1832.7364517171.

Adding to 6156020440 its reverse (440206516), we get a palindrome (6596226956).

The spelling of 6156020440 in words is "six billion, one hundred fifty-six million, twenty thousand, four hundred forty".