64022684820 has 48 divisors (see below), whose sum is σ = 181939103808. Its totient is φ = 16817898240.

The previous prime is 64022684723. The next prime is 64022684827. The reversal of 64022684820 is 2848622046.

It is a super-2 number, since 2×64022684820² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64022684827) 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, 7959001 + ... + 7967040.

It is an arithmetic number, because the mean of its divisors is an integer number (3790397996).

Almost surely, 2^64022684820 is an apocalyptic number.

64022684820 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

64022684820 is an abundant number, since it is smaller than the sum of its proper divisors (117916418988).

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

64022684820 is a wasteful number, since it uses less digits than its factorization.

64022684820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15926120 (or 15926118 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 42.

The spelling of 64022684820 in words is "sixty-four billion, twenty-two million, six hundred eighty-four thousand, eight hundred twenty".