64024620204420 has 72 divisors (see below), whose sum is σ = 199456879900824. Its totient is φ = 16611793348608.

The previous prime is 64024620204367. The next prime is 64024620204583. The reversal of 64024620204420 is 2440202642046.

64024620204420 is a `hidden beast` number, since 6 + 4 + 0 + 2 + 4 + 6 + 20 + 204 + 420 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 38773934904384 + 25250685300036 = 6226872^2 + 5025006^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4806646509 + ... + 4806659828.

It is an arithmetic number, because the mean of its divisors is an integer number (2770234443067).

Almost surely, 2^{64024620204420} is an apocalyptic number.

64024620204420 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

64024620204420 is an abundant number, since it is smaller than the sum of its proper divisors (135432259696404).

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

64024620204420 is a wasteful number, since it uses less digits than its factorization.

64024620204420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9613306389 (or 9613306384 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 36.

Adding to 64024620204420 its reverse (2440202642046), we get a palindrome (66464822846466).

The spelling of 64024620204420 in words is "sixty-four trillion, twenty-four billion, six hundred twenty million, two hundred four thousand, four hundred twenty".