163434525563340 has 120 divisors (see below), whose sum is σ = 512824411516032. Its totient is φ = 43571978023680.

The previous prime is 163434525563297. The next prime is 163434525563359. The reversal of 163434525563340 is 43365525434361.

It is a happy number.

163434525563340 is a `hidden beast` number, since 1 + 6 + 3 + 4 + 3 + 4 + 52 + 556 + 3 + 34 + 0 = 666.

It is a super-2 number, since 2×163434525563340² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 5536881 + ... + 18908360.

Almost surely, 2^{163434525563340} is an apocalyptic number.

163434525563340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

163434525563340 is an abundant number, since it is smaller than the sum of its proper divisors (349389885952692).

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

163434525563340 is a wasteful number, since it uses less digits than its factorization.

163434525563340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24449389 (or 24449378 counting only the distinct ones).

The product of its (nonzero) digits is 46656000, while the sum is 54.

The spelling of 163434525563340 in words is "one hundred sixty-three trillion, four hundred thirty-four billion, five hundred twenty-five million, five hundred sixty-three thousand, three hundred forty".