64420202446 has 16 divisors (see below), whose sum is σ = 97051175424. Its totient is φ = 32070104064.

The previous prime is 64420202389. The next prime is 64420202447.

64420202446 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64420202447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 369106 + ... + 514858.

It is an arithmetic number, because the mean of its divisors is an integer number (6065698464).

Almost surely, 2^64420202446 is an apocalyptic number.

64420202446 is a deficient number, since it is larger than the sum of its proper divisors (32630972978).

64420202446 is a wasteful number, since it uses less digits than its factorization.

64420202446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146715.

The product of its (nonzero) digits is 73728, while the sum is 34.

The spelling of 64420202446 in words is "sixty-four billion, four hundred twenty million, two hundred two thousand, four hundred forty-six".