64551695 has 8 divisors (see below), whose sum is σ = 83420736. Its totient is φ = 47668896.

The previous prime is 64551689. The next prime is 64551701. The reversal of 64551695 is 59615546.

It is an interprime number because it is at equal distance from previous prime (64551689) and next prime (64551701).

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 64551695 - 2¹⁴ = 64535311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 496487 + ... + 496616.

It is an arithmetic number, because the mean of its divisors is an integer number (10427592).

Almost surely, 2^64551695 is an apocalyptic number.

64551695 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

64551695 is a deficient number, since it is larger than the sum of its proper divisors (18869041).

64551695 is a wasteful number, since it uses less digits than its factorization.

64551695 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 993121.

The product of its digits is 162000, while the sum is 41.

The square root of 64551695 is about 8034.4069476222. The cubic root of 64551695 is about 401.1460777118.

The spelling of 64551695 in words is "sixty-four million, five hundred fifty-one thousand, six hundred ninety-five".