1331448154560 has 336 divisors, whose sum is σ = 4865847012000. Its totient is φ = 334163828736.

The previous prime is 1331448154537. The next prime is 1331448154567. The reversal of 1331448154560 is 654518441331.

It is a happy number.

1331448154560 is a `hidden beast` number, since 1 + 3 + 3 + 1 + 4 + 4 + 81 + 5 + 4 + 560 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331448154567) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 14102391 + ... + 14196489.

Almost surely, 2^{1331448154560} is an apocalyptic number.

1331448154560 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 1331448154560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2432923506000).

1331448154560 is an abundant number, since it is smaller than the sum of its proper divisors (3534398857440).

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

1331448154560 is an equidigital number, since it uses as much as digits as its factorization.

1331448154560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94173 (or 94126 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 45.

The spelling of 1331448154560 in words is "one trillion, three hundred thirty-one billion, four hundred forty-eight million, one hundred fifty-four thousand, five hundred sixty".