166120988 has 24 divisors (see below), whose sum is σ = 317501184. Its totient is φ = 75423600.

The previous prime is 166120987. The next prime is 166121003. The reversal of 166120988 is 889021661.

It is a super-2 number, since 2×166120988² = 55192365308192288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166120987) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52631 + ... + 55697.

It is an arithmetic number, because the mean of its divisors is an integer number (13229216).

Almost surely, 2^166120988 is an apocalyptic number.

It is an amenable number.

166120988 is a deficient number, since it is larger than the sum of its proper divisors (151380196).

166120988 is a wasteful number, since it uses less digits than its factorization.

166120988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4313 (or 4311 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 41.

The square root of 166120988 is about 12888.7931165024. The cubic root of 166120988 is about 549.7199544020.

The spelling of 166120988 in words is "one hundred sixty-six million, one hundred twenty thousand, nine hundred eighty-eight".