20365144363754 has 4 divisors (see below), whose sum is σ = 30547716545634. Its totient is φ = 10182572181876.

The previous prime is 20365144363747. The next prime is 20365144363873. The reversal of 20365144363754 is 45736344156302.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 15785642803225 + 4579501560529 = 3973115^2 + 2139977^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20365144363696 and 20365144363705.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5091286090937 + ... + 5091286090940.

Almost surely, 2^{20365144363754} is an apocalyptic number.

20365144363754 is a deficient number, since it is larger than the sum of its proper divisors (10182572181880).

20365144363754 is a wasteful number, since it uses less digits than its factorization.

20365144363754 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10182572181879.

The product of its (nonzero) digits is 21772800, while the sum is 53.

The spelling of 20365144363754 in words is "twenty trillion, three hundred sixty-five billion, one hundred forty-four million, three hundred sixty-three thousand, seven hundred fifty-four".