166606151053 has 4 divisors (see below), whose sum is σ = 167025814300. Its totient is φ = 166186487808.

The previous prime is 166606151051. The next prime is 166606151099. The reversal of 166606151053 is 350151606661.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 87229850409 + 79376300644 = 295347^2 + 281738^2 .

It is a cyclic number.

It is not a de Polignac number, because 166606151053 - 2¹ = 166606151051 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 166606150997 and 166606151015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166606151051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 209831028 + ... + 209831821.

It is an arithmetic number, because the mean of its divisors is an integer number (41756453575).

Almost surely, 2^166606151053 is an apocalyptic number.

It is an amenable number.

166606151053 is a deficient number, since it is larger than the sum of its proper divisors (419663247).

166606151053 is an equidigital number, since it uses as much as digits as its factorization.

166606151053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419663246.

The product of its (nonzero) digits is 97200, while the sum is 40.

The spelling of 166606151053 in words is "one hundred sixty-six billion, six hundred six million, one hundred fifty-one thousand, fifty-three".