166252503 has 8 divisors (see below), whose sum is σ = 234709488. Its totient is φ = 104315264.

The previous prime is 166252483. The next prime is 166252517. The reversal of 166252503 is 305252661.

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

It is not a de Polignac number, because 166252503 - 2⁶ = 166252439 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166252543) 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, 1629876 + ... + 1629977.

It is an arithmetic number, because the mean of its divisors is an integer number (29338686).

Almost surely, 2^166252503 is an apocalyptic number.

166252503 is a deficient number, since it is larger than the sum of its proper divisors (68456985).

166252503 is a wasteful number, since it uses less digits than its factorization.

166252503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3259873.

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 166252503 is about 12893.8940200391. The cubic root of 166252503 is about 549.8649839384.

The spelling of 166252503 in words is "one hundred sixty-six million, two hundred fifty-two thousand, five hundred three".