20352654764672 has 64 divisors (see below), whose sum is σ = 40787525734560. Its totient is φ = 10115805342720.

The previous prime is 20352654764639. The next prime is 20352654764683. The reversal of 20352654764672 is 27646745625302.

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137285147 + ... + 137433317.

Almost surely, 2^{20352654764672} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20352654764672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20393762867280).

20352654764672 is an abundant number, since it is smaller than the sum of its proper divisors (20434870969888).

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

20352654764672 is a wasteful number, since it uses less digits than its factorization.

20352654764672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154561 (or 154549 counting only the distinct ones).

The product of its (nonzero) digits is 101606400, while the sum is 59.

The spelling of 20352654764672 in words is "twenty trillion, three hundred fifty-two billion, six hundred fifty-four million, seven hundred sixty-four thousand, six hundred seventy-two".