64556132151223 has 4 divisors (see below), whose sum is σ = 67362920505648. Its totient is φ = 61749343796800.

The previous prime is 64556132151221. The next prime is 64556132151227. The reversal of 64556132151223 is 32215123165546.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 64556132151223 - 2¹ = 64556132151221 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 (64556132151221) 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, 1403394177178 + ... + 1403394177223.

It is an arithmetic number, because the mean of its divisors is an integer number (16840730126412).

Almost surely, 2^{64556132151223} is an apocalyptic number.

64556132151223 is a deficient number, since it is larger than the sum of its proper divisors (2806788354425).

64556132151223 is a wasteful number, since it uses less digits than its factorization.

64556132151223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2806788354424.

The product of its digits is 1296000, while the sum is 46.

The spelling of 64556132151223 in words is "sixty-four trillion, five hundred fifty-six billion, one hundred thirty-two million, one hundred fifty-one thousand, two hundred twenty-three".