1195899344640 has 3456 divisors, whose sum is σ = 6047742984192. Its totient is φ = 218096271360.

The previous prime is 1195899344639. The next prime is 1195899344657. The reversal of 1195899344640 is 464439985911.

1195899344640 is a `hidden beast` number, since 1 + 1 + 9 + 5 + 89 + 93 + 4 + 464 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (3456).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 7161073837 + ... + 7161074003.

It is an arithmetic number, because the mean of its divisors is an integer number (1749925632).

Almost surely, 2^{1195899344640} is an apocalyptic number.

1195899344640 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 1195899344640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3023871492096).

1195899344640 is an abundant number, since it is smaller than the sum of its proper divisors (4851843639552).

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

1195899344640 is a wasteful number, since it uses less digits than its factorization.

1195899344640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257 (or 231 counting only the distinct ones).

The product of its (nonzero) digits is 33592320, while the sum is 63.

The spelling of 1195899344640 in words is "one trillion, one hundred ninety-five billion, eight hundred ninety-nine million, three hundred forty-four thousand, six hundred forty".