64662151 has 4 divisors (see below), whose sum is σ = 64786312. Its totient is φ = 64537992.

The previous prime is 64662137. The next prime is 64662163. The reversal of 64662151 is 15126646.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15126646 = 2 ⋅7563323.

It is a cyclic number.

It is not a de Polignac number, because 64662151 - 2¹³ = 64653959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64662121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61296 + ... + 62341.

It is an arithmetic number, because the mean of its divisors is an integer number (16196578).

Almost surely, 2^64662151 is an apocalyptic number.

64662151 is a deficient number, since it is larger than the sum of its proper divisors (124161).

64662151 is a wasteful number, since it uses less digits than its factorization.

64662151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124160.

The product of its digits is 8640, while the sum is 31.

The square root of 64662151 is about 8041.2779456999. The cubic root of 64662151 is about 401.3747509864.

Adding to 64662151 its reverse (15126646), we get a palindrome (79788797).

The spelling of 64662151 in words is "sixty-four million, six hundred sixty-two thousand, one hundred fifty-one".