260156736 has 168 divisors, whose sum is σ = 861267264. Its totient is φ = 73543680.

The previous prime is 260156719. The next prime is 260156737. The reversal of 260156736 is 637651062.

260156736 is a `hidden beast` number, since 2 + 60 + 1 + 567 + 36 = 666.

It is a tau number, because it is divible by the number of its divisors (168).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 260156736.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (260156737) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 455331 + ... + 455901.

Almost surely, 2^260156736 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 260156736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (430633632).

260156736 is an abundant number, since it is smaller than the sum of its proper divisors (601110528).

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

260156736 is a wasteful number, since it uses less digits than its factorization.

260156736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 709 (or 696 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 260156736 is about 16129.3749413919. The cubic root of 260156736 is about 638.3786564557.

The spelling of 260156736 in words is "two hundred sixty million, one hundred fifty-six thousand, seven hundred thirty-six".