64210161 has 8 divisors (see below), whose sum is σ = 86109120. Its totient is φ = 42558992.

The previous prime is 64210129. The next prime is 64210163. The reversal of 64210161 is 16101246.

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

It is a cyclic number.

It is not a de Polignac number, because 64210161 - 2⁵ = 64210129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64210163) 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, 61341 + ... + 62378.

It is an arithmetic number, because the mean of its divisors is an integer number (10763640).

Almost surely, 2^64210161 is an apocalyptic number.

It is an amenable number.

64210161 is a deficient number, since it is larger than the sum of its proper divisors (21898959).

64210161 is a wasteful number, since it uses less digits than its factorization.

64210161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123895.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 64210161 is about 8013.1242970517. The cubic root of 64210161 is about 400.4373570394.

The spelling of 64210161 in words is "sixty-four million, two hundred ten thousand, one hundred sixty-one".