20335980679 has 16 divisors (see below), whose sum is σ = 24262737408. Its totient is φ = 16665324192.

The previous prime is 20335980667. The next prime is 20335980733. The reversal of 20335980679 is 97608953302.

It is a cyclic number.

It is not a de Polignac number, because 20335980679 - 2¹¹ = 20335978631 is a prime.

It is a super-2 number, since 2×20335980679² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20335980659) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 337129 + ... + 392845.

It is an arithmetic number, because the mean of its divisors is an integer number (1516421088).

Almost surely, 2^20335980679 is an apocalyptic number.

20335980679 is a deficient number, since it is larger than the sum of its proper divisors (3926756729).

20335980679 is a wasteful number, since it uses less digits than its factorization.

20335980679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58014.

The product of its (nonzero) digits is 2449440, while the sum is 52.

The spelling of 20335980679 in words is "twenty billion, three hundred thirty-five million, nine hundred eighty thousand, six hundred seventy-nine".