20206623160644 has 48 divisors (see below), whose sum is σ = 48372237426240. Its totient is φ = 6562783037440.

The previous prime is 20206623160643. The next prime is 20206623160649. The reversal of 20206623160644 is 44606132660202.

It is a junction number, because it is equal to n+sod(n) for n = 20206623160596 and 20206623160605.

It is not an unprimeable number, because it can be changed into a prime (20206623160643) 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, 126205077 + ... + 126365084.

It is an arithmetic number, because the mean of its divisors is an integer number (1007754946380).

Almost surely, 2^{20206623160644} is an apocalyptic number.

It is an amenable number.

20206623160644 is an abundant number, since it is smaller than the sum of its proper divisors (28165614265596).

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

20206623160644 is a wasteful number, since it uses less digits than its factorization.

20206623160644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252570340 (or 252570338 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 42.

The spelling of 20206623160644 in words is "twenty trillion, two hundred six billion, six hundred twenty-three million, one hundred sixty thousand, six hundred forty-four".