1346615581320 has 640 divisors, whose sum is σ = 4825907856000. Its totient is φ = 335833620480.

The previous prime is 1346615581313. The next prime is 1346615581373. The reversal of 1346615581320 is 231855166431.

1346615581320 is a `hidden beast` number, since 1 + 3 + 4 + 6 + 61 + 5 + 581 + 3 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 2062198114 + ... + 2062198766.

It is an arithmetic number, because the mean of its divisors is an integer number (7540481025).

Almost surely, 2^{1346615581320} is an apocalyptic number.

1346615581320 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 1346615581320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2412953928000).

1346615581320 is an abundant number, since it is smaller than the sum of its proper divisors (3479292274680).

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

1346615581320 is a wasteful number, since it uses less digits than its factorization.

1346615581320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1075 (or 1062 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 45.

The spelling of 1346615581320 in words is "one trillion, three hundred forty-six billion, six hundred fifteen million, five hundred eighty-one thousand, three hundred twenty".