64120064306 has 4 divisors (see below), whose sum is σ = 96180096462. Its totient is φ = 32060032152.

The previous prime is 64120064303. The next prime is 64120064317. The reversal of 64120064306 is 60346002146.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 60346002146 = 2 ⋅30173001073.

It can be written as a sum of positive squares in only one way, i.e., 32290293025 + 31829771281 = 179695^2 + 178409^2 .

It is a super-2 number, since 2×64120064306² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (64120064303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16030016075 + ... + 16030016078.

Almost surely, 2^64120064306 is an apocalyptic number.

64120064306 is a deficient number, since it is larger than the sum of its proper divisors (32060032156).

64120064306 is a wasteful number, since it uses less digits than its factorization.

64120064306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32060032155.

The product of its (nonzero) digits is 20736, while the sum is 32.

The spelling of 64120064306 in words is "sixty-four billion, one hundred twenty million, sixty-four thousand, three hundred six".