64053521056420 has 48 divisors (see below), whose sum is σ = 155455736526720. Its totient is φ = 21714452077824.

The previous prime is 64053521056417. The next prime is 64053521056423. The reversal of 64053521056420 is 2465012535046.

It is an interprime number because it is at equal distance from previous prime (64053521056417) and next prime (64053521056423).

It is not an unprimeable number, because it can be changed into a prime (64053521056423) 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, 2570353554 + ... + 2570378473.

It is an arithmetic number, because the mean of its divisors is an integer number (3238661177640).

Almost surely, 2^{64053521056420} is an apocalyptic number.

It is an amenable number.

64053521056420 is an abundant number, since it is smaller than the sum of its proper divisors (91402215470300).

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

64053521056420 is a wasteful number, since it uses less digits than its factorization.

64053521056420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5140732132 (or 5140732130 counting only the distinct ones).

The product of its (nonzero) digits is 864000, while the sum is 43.

The spelling of 64053521056420 in words is "sixty-four trillion, fifty-three billion, five hundred twenty-one million, fifty-six thousand, four hundred twenty".