20617336383 has 24 divisors (see below), whose sum is σ = 32757868080. Its totient is φ = 11493982080.

The previous prime is 20617336351. The next prime is 20617336387. The reversal of 20617336383 is 38363371602.

It is a happy number.

It is not a de Polignac number, because 20617336383 - 2⁵ = 20617336351 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20617336387) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1704388 + ... + 1716441.

It is an arithmetic number, because the mean of its divisors is an integer number (1364911170).

Almost surely, 2^20617336383 is an apocalyptic number.

20617336383 is a deficient number, since it is larger than the sum of its proper divisors (12140531697).

20617336383 is a wasteful number, since it uses less digits than its factorization.

20617336383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3420887 (or 3420880 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 42.

It can be divided in two parts, 206173 and 36383, that added together give a triangular number (242556 = T₆₉₆).

The spelling of 20617336383 in words is "twenty billion, six hundred seventeen million, three hundred thirty-six thousand, three hundred eighty-three".