168042547530 has 96 divisors (see below), whose sum is σ = 513293639040. Its totient is φ = 37603923840.

The previous prime is 168042547513. The next prime is 168042547573. The reversal of 168042547530 is 35745240861.

168042547530 is a `hidden beast` number, since 1 + 68 + 0 + 4 + 2 + 54 + 7 + 530 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 6515590 + ... + 6541329.

It is an arithmetic number, because the mean of its divisors is an integer number (5346808740).

Almost surely, 2^168042547530 is an apocalyptic number.

168042547530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

168042547530 is an abundant number, since it is smaller than the sum of its proper divisors (345251091510).

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

168042547530 is a wasteful number, since it uses less digits than its factorization.

168042547530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13056956 (or 13056953 counting only the distinct ones).

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

The spelling of 168042547530 in words is "one hundred sixty-eight billion, forty-two million, five hundred forty-seven thousand, five hundred thirty".