166100816 has 20 divisors (see below), whose sum is σ = 367794912. Its totient is φ = 71186016.

The previous prime is 166100801. The next prime is 166100843. The reversal of 166100816 is 618001661.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 741410 + ... + 741633.

Almost surely, 2^166100816 is an apocalyptic number.

166100816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

166100816 is an abundant number, since it is smaller than the sum of its proper divisors (201694096).

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

166100816 is a wasteful number, since it uses less digits than its factorization.

166100816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1483058 (or 1483052 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 166100816 is about 12888.0105524476. The cubic root of 166100816 is about 549.6977027489.

The spelling of 166100816 in words is "one hundred sixty-six million, one hundred thousand, eight hundred sixteen".