64161603 has 12 divisors (see below), whose sum is σ = 101103288. Its totient is φ = 38885760.

The previous prime is 64161583. The next prime is 64161607. The reversal of 64161603 is 30616146.

64161603 is a `hidden beast` number, since 6 + 41 + 616 + 0 + 3 = 666.

64161603 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 64161603 - 2¹⁴ = 64145219 is a prime.

It is a super-2 number, since 2×64161603² = 8233422599059218, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (64161607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 323950 + ... + 324147.

It is an arithmetic number, because the mean of its divisors is an integer number (8425274).

Almost surely, 2^64161603 is an apocalyptic number.

64161603 is a deficient number, since it is larger than the sum of its proper divisors (36941685).

64161603 is a wasteful number, since it uses less digits than its factorization.

64161603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 648114 (or 648111 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 64161603 is about 8010.0938196753. The cubic root of 64161603 is about 400.3363899419.

Adding to 64161603 its reverse (30616146), we get a palindrome (94777749).

The spelling of 64161603 in words is "sixty-four million, one hundred sixty-one thousand, six hundred three".