1946066850225 has 27 divisors (see below), whose sum is σ = 3485659438209. Its totient is φ = 1037891160000.

The previous prime is 1946066850223. The next prime is 1946066850271. The reversal of 1946066850225 is 5220586606491.

The square root of 1946066850225 is 1395015.

It is a perfect power (a square), and thus also a powerful number.

1946066850225 is a `hidden beast` number, since 1 + 9 + 4 + 606 + 6 + 8 + 5 + 0 + 2 + 25 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 116724039201 + 1829342811024 = 341649^2 + 1352532^2 .

It is not a de Polignac number, because 1946066850225 - 2¹ = 1946066850223 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1946066850223) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 20878725 + ... + 20971725.

Almost surely, 2^{1946066850225} is an apocalyptic number.

1946066850225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1946066850225 is the 1395015-th square number.

1946066850225 is the 697508-th centered octagonal number.

It is an amenable number.

1946066850225 is a deficient number, since it is larger than the sum of its proper divisors (1539592587984).

1946066850225 is an frugal number, since it uses more digits than its factorization.

1946066850225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186018 (or 93009 counting only the distinct ones).

The product of its (nonzero) digits is 6220800, while the sum is 54.

The spelling of 1946066850225 in words is "one trillion, nine hundred forty-six billion, sixty-six million, eight hundred fifty thousand, two hundred twenty-five".