168048421536 has 48 divisors (see below), whose sum is σ = 441211627584. Its totient is φ = 56005407744.

The previous prime is 168048421531. The next prime is 168048421601. The reversal of 168048421536 is 635124840861.

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

It is a super-2 number, since 2×168048421536² (a number of 23 digits) contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (168048421531) by changing a digit.

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, 344040 + ... + 674136.

It is an arithmetic number, because the mean of its divisors is an integer number (9191908908).

Almost surely, 2^168048421536 is an apocalyptic number.

168048421536 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

168048421536 is an abundant number, since it is smaller than the sum of its proper divisors (273163206048).

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

168048421536 is a wasteful number, since it uses less digits than its factorization.

168048421536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335413 (or 335405 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 48.

The spelling of 168048421536 in words is "one hundred sixty-eight billion, forty-eight million, four hundred twenty-one thousand, five hundred thirty-six".