166843350925 has 12 divisors (see below), whose sum is σ = 206969354676. Its totient is φ = 133420745600.

The previous prime is 166843350893. The next prime is 166843350931. The reversal of 166843350925 is 529053348661.

It can be written as a sum of positive squares in 6 ways, for example, as 40731716041 + 126111634884 = 201821^2 + 355122^2 .

It is not a de Polignac number, because 166843350925 - 2⁵ = 166843350893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1285216 + ... + 1409065.

It is an arithmetic number, because the mean of its divisors is an integer number (17247446223).

Almost surely, 2^166843350925 is an apocalyptic number.

It is an amenable number.

166843350925 is a deficient number, since it is larger than the sum of its proper divisors (40126003751).

166843350925 is a wasteful number, since it uses less digits than its factorization.

166843350925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2696768 (or 2696763 counting only the distinct ones).

The product of its (nonzero) digits is 4665600, while the sum is 52.

The spelling of 166843350925 in words is "one hundred sixty-six billion, eight hundred forty-three million, three hundred fifty thousand, nine hundred twenty-five".