260153656 has 64 divisors (see below), whose sum is σ = 575424000. Its totient is φ = 107963520.

The previous prime is 260153639. The next prime is 260153657. The reversal of 260153656 is 656351062.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (260153657) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 234030 + ... + 235138.

It is an arithmetic number, because the mean of its divisors is an integer number (8991000).

Almost surely, 2^260153656 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 260153656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (287712000).

260153656 is an abundant number, since it is smaller than the sum of its proper divisors (315270344).

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

260153656 is a wasteful number, since it uses less digits than its factorization.

260153656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1252 (or 1248 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 34.

The square root of 260153656 is about 16129.2794631378. The cubic root of 260153656 is about 638.3761371872.

The spelling of 260153656 in words is "two hundred sixty million, one hundred fifty-three thousand, six hundred fifty-six".