166100501 has 8 divisors (see below), whose sum is σ = 189928704. Its totient is φ = 142297200.

The previous prime is 166100483. The next prime is 166100509. The reversal of 166100501 is 105001661.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 166100501 - 2¹⁴ = 166084117 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166100509) 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, 11411 + ... + 21503.

It is an arithmetic number, because the mean of its divisors is an integer number (23741088).

Almost surely, 2^166100501 is an apocalyptic number.

It is an amenable number.

166100501 is a deficient number, since it is larger than the sum of its proper divisors (23828203).

166100501 is a wasteful number, since it uses less digits than its factorization.

166100501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12451.

The product of its (nonzero) digits is 180, while the sum is 20.

The square root of 166100501 is about 12887.9983317814. The cubic root of 166100501 is about 549.6973552594.

The spelling of 166100501 in words is "one hundred sixty-six million, one hundred thousand, five hundred one".