166563002 has 4 divisors (see below), whose sum is σ = 249844506. Its totient is φ = 83281500.

The previous prime is 166562993. The next prime is 166563013. The reversal of 166563002 is 200365661.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 85581001 + 80982001 = 9251^2 + 8999^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41640749 + ... + 41640752.

Almost surely, 2^166563002 is an apocalyptic number.

166563002 is a deficient number, since it is larger than the sum of its proper divisors (83281504).

166563002 is an equidigital number, since it uses as much as digits as its factorization.

166563002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83281503.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 166563002 is about 12905.9289475806. The cubic root of 166563002 is about 550.2070867559.

The spelling of 166563002 in words is "one hundred sixty-six million, five hundred sixty-three thousand, two".