1171645452432 has 1680 divisors, whose sum is σ = 4583475388800. Its totient is φ = 282981703680.

The previous prime is 1171645452407. The next prime is 1171645452469. The reversal of 1171645452432 is 2342545461711.

It is a happy number.

1171645452432 is a `hidden beast` number, since 1 + 1 + 7 + 1 + 64 + 545 + 2 + 43 + 2 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 335 ways as a sum of consecutive naturals, for example, 10749040794 + ... + 10749040902.

It is an arithmetic number, because the mean of its divisors is an integer number (2728259160).

Almost surely, 2^{1171645452432} is an apocalyptic number.

1171645452432 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 1171645452432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2291737694400).

1171645452432 is an abundant number, since it is smaller than the sum of its proper divisors (3411829936368).

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

1171645452432 is a wasteful number, since it uses less digits than its factorization.

1171645452432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228 (or 194 counting only the distinct ones).

The product of its digits is 806400, while the sum is 45.

The spelling of 1171645452432 in words is "one trillion, one hundred seventy-one billion, six hundred forty-five million, four hundred fifty-two thousand, four hundred thirty-two".