64006161 has 16 divisors (see below), whose sum is σ = 88752000. Its totient is φ = 40981248.

The previous prime is 64006153. The next prime is 64006169. The reversal of 64006161 is 16160046.

It is an interprime number because it is at equal distance from previous prime (64006153) and next prime (64006169).

It is not a de Polignac number, because 64006161 - 2³ = 64006153 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (64006169) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15465 + ... + 19161.

It is an arithmetic number, because the mean of its divisors is an integer number (5547000).

Almost surely, 2^64006161 is an apocalyptic number.

It is an amenable number.

64006161 is a deficient number, since it is larger than the sum of its proper divisors (24745839).

64006161 is a wasteful number, since it uses less digits than its factorization.

64006161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3928.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 64006161 is about 8000.3850532334. The cubic root of 64006161 is about 400.0128350048.

It can be divided in two parts, 6400 and 6161, that added together give a triangular number (12561 = T₁₅₈).

The spelling of 64006161 in words is "sixty-four million, six thousand, one hundred sixty-one".