64522222546 has 4 divisors (see below), whose sum is σ = 96783333822. Its totient is φ = 32261111272.

The previous prime is 64522222543. The next prime is 64522222553.

64522222546 is nontrivially palindromic in base 10.

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

It can be written as a sum of positive squares in only one way, i.e., 64148225625 + 373996921 = 253275^2 + 19339^2 .

It is a junction number, because it is equal to n+sod(n) for n = 64522222499 and 64522222508.

It is not an unprimeable number, because it can be changed into a prime (64522222543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16130555635 + ... + 16130555638.

Almost surely, 2^64522222546 is an apocalyptic number.

64522222546 is a deficient number, since it is larger than the sum of its proper divisors (32261111276).

64522222546 is a wasteful number, since it uses less digits than its factorization.

64522222546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32261111275.

The product of its digits is 460800, while the sum is 40.

The spelling of 64522222546 in words is "sixty-four billion, five hundred twenty-two million, two hundred twenty-two thousand, five hundred forty-six".