166354363450 has 36 divisors (see below), whose sum is σ = 340105321710. Its totient is φ = 60492493600.

The previous prime is 166354363423. The next prime is 166354363457. The reversal of 166354363450 is 54363453661.

166354363450 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 76590009001 + 89764354449 = 276749^2 + 299607^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 166354363450.

It is not an unprimeable number, because it can be changed into a prime (166354363457) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 13742245 + ... + 13754344.

Almost surely, 2^166354363450 is an apocalyptic number.

166354363450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

166354363450 is an abundant number, since it is smaller than the sum of its proper divisors (173750958260).

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

166354363450 is a wasteful number, since it uses less digits than its factorization.

166354363450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27496623 (or 27496607 counting only the distinct ones).

The product of its (nonzero) digits is 2332800, while the sum is 46.

The spelling of 166354363450 in words is "one hundred sixty-six billion, three hundred fifty-four million, three hundred sixty-three thousand, four hundred fifty".