6165912440 has 16 divisors (see below), whose sum is σ = 13873303080. Its totient is φ = 2466364960.

The previous prime is 6165912439. The next prime is 6165912449. The reversal of 6165912440 is 442195616.

It is a junction number, because it is equal to n+sod(n) for n = 6165912394 and 6165912403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6165912449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77073866 + ... + 77073945.

Almost surely, 2^6165912440 is an apocalyptic number.

It is an amenable number.

6165912440 is an abundant number, since it is smaller than the sum of its proper divisors (7707390640).

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

6165912440 is a wasteful number, since it uses less digits than its factorization.

6165912440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154147822 (or 154147818 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 6165912440 is about 78523.3241782338. The cubic root of 6165912440 is about 1833.7175902734.

The spelling of 6165912440 in words is "six billion, one hundred sixty-five million, nine hundred twelve thousand, four hundred forty".