6161780724 has 96 divisors (see below), whose sum is σ = 15998653440. Its totient is φ = 1830124800.

The previous prime is 6161780719. The next prime is 6161780741. The reversal of 6161780724 is 4270871616.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1675752 + ... + 1679424.

It is an arithmetic number, because the mean of its divisors is an integer number (166652640).

Almost surely, 2^6161780724 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 6161780724, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7999326720).

6161780724 is an abundant number, since it is smaller than the sum of its proper divisors (9836872716).

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

6161780724 is a wasteful number, since it uses less digits than its factorization.

6161780724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3941 (or 3939 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 42.

The square root of 6161780724 is about 78497.0109239836. The cubic root of 6161780724 is about 1833.3079135061.

It can be divided in two parts, 6161 and 780724, that added together give a triangular number (786885 = T₁₂₅₄).

The spelling of 6161780724 in words is "six billion, one hundred sixty-one million, seven hundred eighty thousand, seven hundred twenty-four".