1365001989120 has 1056 divisors, whose sum is σ = 5920507247616. Its totient is φ = 282496204800.

The previous prime is 1365001989077. The next prime is 1365001989121. The reversal of 1365001989120 is 219891005631.

1365001989120 is a `hidden beast` number, since 1 + 3 + 6 + 500 + 19 + 8 + 9 + 120 = 666.

It is a tau number, because it is divible by the number of its divisors (1056).

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

It is not an unprimeable number, because it can be changed into a prime (1365001989121) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1103477142 + ... + 1103478378.

Almost surely, 2^{1365001989120} is an apocalyptic number.

1365001989120 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 1365001989120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2960253623808).

1365001989120 is an abundant number, since it is smaller than the sum of its proper divisors (4555505258496).

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

1365001989120 is a wasteful number, since it uses less digits than its factorization.

1365001989120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1597 (or 1576 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 45.

The spelling of 1365001989120 in words is "one trillion, three hundred sixty-five billion, one million, nine hundred eighty-nine thousand, one hundred twenty".