168645613152 has 48 divisors (see below), whose sum is σ = 443148097392. Its totient is φ = 56157634560.

The previous prime is 168645613121. The next prime is 168645613187. The reversal of 168645613152 is 251316546861.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 805249 + ... + 992832.

It is an arithmetic number, because the mean of its divisors is an integer number (9232252029).

Almost surely, 2^168645613152 is an apocalyptic number.

168645613152 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

168645613152 is an abundant number, since it is smaller than the sum of its proper divisors (274502484240).

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

168645613152 is a wasteful number, since it uses less digits than its factorization.

168645613152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1799071 (or 1799063 counting only the distinct ones).

The product of its digits is 1036800, while the sum is 48.

The spelling of 168645613152 in words is "one hundred sixty-eight billion, six hundred forty-five million, six hundred thirteen thousand, one hundred fifty-two".