1355608680 has 128 divisors (see below), whose sum is σ = 4165447680. Its totient is φ = 352835840.

The previous prime is 1355608663. The next prime is 1355608687. The reversal of 1355608680 is 868065531.

It is not an unprimeable number, because it can be changed into a prime (1355608687) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 910897 + ... + 912383.

It is an arithmetic number, because the mean of its divisors is an integer number (32542560).

Almost surely, 2^1355608680 is an apocalyptic number.

1355608680 is a gapful number since it is divisible by the number (10) 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 1355608680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2082723840).

1355608680 is an abundant number, since it is smaller than the sum of its proper divisors (2809839000).

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

1355608680 is a wasteful number, since it uses less digits than its factorization.

1355608680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1679 (or 1675 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 42.

The square root of 1355608680 is about 36818.5914994042. The cubic root of 1355608680 is about 1106.7378944010.

The spelling of 1355608680 in words is "one billion, three hundred fifty-five million, six hundred eight thousand, six hundred eighty".