20372242667 has 8 divisors (see below), whose sum is σ = 23544165600. Its totient is φ = 17265720384.

The previous prime is 20372242619. The next prime is 20372242679. The reversal of 20372242667 is 76624227302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20372242667 - 2⁸ = 20372242411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20372242967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16349492 + ... + 16350737.

It is an arithmetic number, because the mean of its divisors is an integer number (2943020700).

Almost surely, 2^20372242667 is an apocalyptic number.

20372242667 is a deficient number, since it is larger than the sum of its proper divisors (3171922933).

20372242667 is an equidigital number, since it uses as much as digits as its factorization.

20372242667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32700325.

The product of its (nonzero) digits is 338688, while the sum is 41.

Adding to 20372242667 its reverse (76624227302), we get a palindrome (96996469969).

The spelling of 20372242667 in words is "twenty billion, three hundred seventy-two million, two hundred forty-two thousand, six hundred sixty-seven".