64454422445446 has 32 divisors (see below), whose sum is σ = 111843991153440. Its totient is φ = 27532368652800.

The previous prime is 64454422445437. The next prime is 64454422445447.

64454422445446 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×64454422445446² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64454422445447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 130114381 + ... + 130608808.

It is an arithmetic number, because the mean of its divisors is an integer number (3495124723545).

Almost surely, 2^{64454422445446} is an apocalyptic number.

64454422445446 is a deficient number, since it is larger than the sum of its proper divisors (47389568707994).

64454422445446 is a wasteful number, since it uses less digits than its factorization.

64454422445446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260723880.

The product of its digits is 235929600, while the sum is 58.

The spelling of 64454422445446 in words is "sixty-four trillion, four hundred fifty-four billion, four hundred twenty-two million, four hundred forty-five thousand, four hundred forty-six".