168025786236550 has 24 divisors (see below), whose sum is σ = 340939595346552. Its totient is φ = 61100285904000.

The previous prime is 168025786236457. The next prime is 168025786236571. The reversal of 168025786236550 is 55632687520861.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 152750714211 + ... + 152750715310.

It is an arithmetic number, because the mean of its divisors is an integer number (14205816472773).

Almost surely, 2^{168025786236550} is an apocalyptic number.

168025786236550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

168025786236550 is an abundant number, since it is smaller than the sum of its proper divisors (172913809110002).

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

168025786236550 is a wasteful number, since it uses less digits than its factorization.

168025786236550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305501429544 (or 305501429539 counting only the distinct ones).

The product of its (nonzero) digits is 145152000, while the sum is 64.

The spelling of 168025786236550 in words is "one hundred sixty-eight trillion, twenty-five billion, seven hundred eighty-six million, two hundred thirty-six thousand, five hundred fifty".