64162420444 has 24 divisors (see below), whose sum is σ = 116208707328. Its totient is φ = 30976066560.

The previous prime is 64162420417. The next prime is 64162420447. The reversal of 64162420444 is 44402426146.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64162420447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2000764 + ... + 2032579.

It is an arithmetic number, because the mean of its divisors is an integer number (4842029472).

Almost surely, 2^64162420444 is an apocalyptic number.

It is an amenable number.

64162420444 is a deficient number, since it is larger than the sum of its proper divisors (52046286884).

64162420444 is a wasteful number, since it uses less digits than its factorization.

64162420444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4033485 (or 4033483 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 37.

The spelling of 64162420444 in words is "sixty-four billion, one hundred sixty-two million, four hundred twenty thousand, four hundred forty-four".