1163205451512 has 192 divisors, whose sum is σ = 3500024935680. Its totient is φ = 346672244736.

The previous prime is 1163205451487. The next prime is 1163205451589. The reversal of 1163205451512 is 2151545023611.

1163205451512 is a `hidden beast` number, since 1 + 1 + 63 + 2 + 0 + 545 + 1 + 51 + 2 = 666.

It is a super-2 number, since 2×1163205451512² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7647628 + ... + 7798244.

It is an arithmetic number, because the mean of its divisors is an integer number (18229296540).

Almost surely, 2^{1163205451512} is an apocalyptic number.

1163205451512 is a gapful number since it is divisible by the number (12) 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 1163205451512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1750012467840).

1163205451512 is an abundant number, since it is smaller than the sum of its proper divisors (2336819484168).

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

1163205451512 is a wasteful number, since it uses less digits than its factorization.

1163205451512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150902 (or 150895 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 36.

The spelling of 1163205451512 in words is "one trillion, one hundred sixty-three billion, two hundred five million, four hundred fifty-one thousand, five hundred twelve".