6161510940 has 384 divisors, whose sum is σ = 20849633280. Its totient is φ = 1344110592.

The previous prime is 6161510921. The next prime is 6161510941. The reversal of 6161510940 is 490151616.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6161510941) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 27143107 + ... + 27143333.

It is an arithmetic number, because the mean of its divisors is an integer number (54295920).

Almost surely, 2^6161510940 is an apocalyptic number.

6161510940 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6161510940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10424816640).

6161510940 is an abundant number, since it is smaller than the sum of its proper divisors (14688122340).

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

6161510940 is a wasteful number, since it uses less digits than its factorization.

6161510940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381 (or 379 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 33.

The square root of 6161510940 is about 78495.2924703131. The cubic root of 6161510940 is about 1833.2811569357.

The spelling of 6161510940 in words is "six billion, one hundred sixty-one million, five hundred ten thousand, nine hundred forty".