163466651 has 4 divisors (see below), whose sum is σ = 163537632. Its totient is φ = 163395672.

The previous prime is 163466621. The next prime is 163466659. The reversal of 163466651 is 156664361.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 156664361 = 7 ⋅22380623.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-163466651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (163466659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31916 + ... + 36681.

It is an arithmetic number, because the mean of its divisors is an integer number (40884408).

Almost surely, 2^163466651 is an apocalyptic number.

163466651 is a deficient number, since it is larger than the sum of its proper divisors (70981).

163466651 is an equidigital number, since it uses as much as digits as its factorization.

163466651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70980.

The product of its digits is 77760, while the sum is 38.

The square root of 163466651 is about 12785.4077369476. The cubic root of 163466651 is about 546.7763502319.

The spelling of 163466651 in words is "one hundred sixty-three million, four hundred sixty-six thousand, six hundred fifty-one".