2064536979920 has 80 divisors (see below), whose sum is σ = 5082695811648. Its totient is φ = 777192867840.

The previous prime is 2064536979913. The next prime is 2064536980067. The reversal of 2064536979920 is 299796354602.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32754035 + ... + 32817005.

Almost surely, 2^{2064536979920} is an apocalyptic number.

2064536979920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2064536979920 is an abundant number, since it is smaller than the sum of its proper divisors (3018158831728).

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

2064536979920 is a wasteful number, since it uses less digits than its factorization.

2064536979920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87108 (or 87102 counting only the distinct ones).

The product of its (nonzero) digits is 44089920, while the sum is 62.

The spelling of 2064536979920 in words is "two trillion, sixty-four billion, five hundred thirty-six million, nine hundred seventy-nine thousand, nine hundred twenty".