260220451680 has 144 divisors (see below), whose sum is σ = 1014859800864. Its totient is φ = 59478958080.

The previous prime is 260220451669. The next prime is 260220451703. The reversal of 260220451680 is 86154022062.

It is a happy number.

260220451680 is a `hidden beast` number, since 2 + 60 + 2 + 2 + 0 + 4 + 516 + 80 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12897681 + ... + 12917840.

It is an arithmetic number, because the mean of its divisors is an integer number (7047637506).

Almost surely, 2^260220451680 is an apocalyptic number.

260220451680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

260220451680 is an abundant number, since it is smaller than the sum of its proper divisors (754639349184).

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

260220451680 is a wasteful number, since it uses less digits than its factorization.

260220451680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25815549 (or 25815538 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The spelling of 260220451680 in words is "two hundred sixty billion, two hundred twenty million, four hundred fifty-one thousand, six hundred eighty".