64159695 has 20 divisors (see below), whose sum is σ = 115012920. Its totient is φ = 34218288.

The previous prime is 64159691. The next prime is 64159699. The reversal of 64159695 is 59695146.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (64159691) and next prime (64159699).

It is not a de Polignac number, because 64159695 - 2² = 64159691 is a prime.

It is a super-3 number, since 3×64159695³ (a number of 24 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 64159695.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64159691) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 78805 + ... + 79614.

It is an arithmetic number, because the mean of its divisors is an integer number (5750646).

Almost surely, 2^64159695 is an apocalyptic number.

64159695 is a deficient number, since it is larger than the sum of its proper divisors (50853225).

64159695 is a wasteful number, since it uses less digits than its factorization.

64159695 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158436 (or 158427 counting only the distinct ones).

The product of its digits is 291600, while the sum is 45.

The square root of 64159695 is about 8009.9747190612. The cubic root of 64159695 is about 400.3324215799.

It can be divided in two parts, 6415 and 9695, that added together give a triangular number (16110 = T₁₇₉).

The spelling of 64159695 in words is "sixty-four million, one hundred fifty-nine thousand, six hundred ninety-five".