166485954727344 has 320 divisors, whose sum is σ = 529781126758400. Its totient is φ = 44962442461440.

The previous prime is 166485954727291. The next prime is 166485954727361. The reversal of 166485954727344 is 443727459584661.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 18153519 + ... + 25739505.

It is an arithmetic number, because the mean of its divisors is an integer number (1655566021120).

Almost surely, 2^{166485954727344} is an apocalyptic number.

166485954727344 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 166485954727344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (264890563379200).

166485954727344 is an abundant number, since it is smaller than the sum of its proper divisors (363295172031056).

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

166485954727344 is a wasteful number, since it uses less digits than its factorization.

166485954727344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7586093 (or 7586073 counting only the distinct ones).

The product of its digits is 4877107200, while the sum is 75.

The spelling of 166485954727344 in words is "one hundred sixty-six trillion, four hundred eighty-five billion, nine hundred fifty-four million, seven hundred twenty-seven thousand, three hundred forty-four".