64151404220 has 12 divisors (see below), whose sum is σ = 134717948904. Its totient is φ = 25660561680.

The previous prime is 64151404217. The next prime is 64151404231. The reversal of 64151404220 is 2240415146.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1603785086 + ... + 1603785125.

It is an arithmetic number, because the mean of its divisors is an integer number (11226495742).

Almost surely, 2^64151404220 is an apocalyptic number.

It is an amenable number.

64151404220 is an abundant number, since it is smaller than the sum of its proper divisors (70566544684).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64151404220 is a wasteful number, since it uses less digits than its factorization.

64151404220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3207570220 (or 3207570218 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 29.

Adding to 64151404220 its reverse (2240415146), we get a palindrome (66391819366).

The spelling of 64151404220 in words is "sixty-four billion, one hundred fifty-one million, four hundred four thousand, two hundred twenty".