16622375171400 has 72 divisors (see below), whose sum is σ = 55823476623330. Its totient is φ = 4432633378560.

The previous prime is 16622375171371. The next prime is 16622375171419. The reversal of 16622375171400 is 417157322661.

16622375171400 is a `hidden beast` number, since 1 + 6 + 6 + 2 + 2 + 3 + 75 + 171 + 400 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 7880383068804 + 8741992102596 = 2807202^2 + 2956686^2 .

It is a tau number, because it is divible by the number of its divisors (72).

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 17 ways as a sum of consecutive naturals, for example, 4617324637 + ... + 4617328236.

Almost surely, 2^{16622375171400} is an apocalyptic number.

16622375171400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16622375171400 is an abundant number, since it is smaller than the sum of its proper divisors (39201101451930).

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

16622375171400 is a wasteful number, since it uses less digits than its factorization.

16622375171400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9234652895 (or 9234652883 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 45.

The spelling of 16622375171400 in words is "sixteen trillion, six hundred twenty-two billion, three hundred seventy-five million, one hundred seventy-one thousand, four hundred".