166277052 has 18 divisors (see below), whose sum is σ = 420311528. Its totient is φ = 55425672.

The previous prime is 166277021. The next prime is 166277053. The reversal of 166277052 is 250772661.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 4618807 = 166277052 / (1 + 6 + 6 + 2 + 7 + 7 + 0 + 5 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 166276998 and 166277016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166277053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2309368 + ... + 2309439.

Almost surely, 2^166277052 is an apocalyptic number.

166277052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

166277052 is an abundant number, since it is smaller than the sum of its proper divisors (254034476).

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

166277052 is a wasteful number, since it uses less digits than its factorization.

166277052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4618817 (or 4618812 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 166277052 is about 12894.8459471217. The cubic root of 166277052 is about 549.8920471322.

The spelling of 166277052 in words is "one hundred sixty-six million, two hundred seventy-seven thousand, fifty-two".