20372370137 has 8 divisors (see below), whose sum is σ = 23577427200. Its totient is φ = 17240992704.

The previous prime is 20372370113. The next prime is 20372370143. The reversal of 20372370137 is 73107327302.

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 20372370137 - 2²² = 20368175833 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20372370097 and 20372370106.

It is not an unprimeable number, because it can be changed into a prime (20372370197) 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, 18419312 + ... + 18420417.

It is an arithmetic number, because the mean of its divisors is an integer number (2947178400).

Almost surely, 2^20372370137 is an apocalyptic number.

It is an amenable number.

20372370137 is a deficient number, since it is larger than the sum of its proper divisors (3205057063).

20372370137 is an equidigital number, since it uses as much as digits as its factorization.

20372370137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36839815.

The product of its (nonzero) digits is 37044, while the sum is 35.

Adding to 20372370137 its reverse (73107327302), we get a palindrome (93479697439).

The spelling of 20372370137 in words is "twenty billion, three hundred seventy-two million, three hundred seventy thousand, one hundred thirty-seven".