21160137237 has 8 divisors (see below), whose sum is σ = 28976043936. Its totient is φ = 13725494352.

The previous prime is 21160137233. The next prime is 21160137247. The reversal of 21160137237 is 73273106112.

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

It is not a de Polignac number, because 21160137237 - 2² = 21160137233 is a prime.

It is a super-3 number, since 3×21160137237³ (a number of 32 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21160137198 and 21160137207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21160137233) 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 7 ways as a sum of consecutive naturals, for example, 95315823 + ... + 95316044.

It is an arithmetic number, because the mean of its divisors is an integer number (3622005492).

Almost surely, 2^21160137237 is an apocalyptic number.

It is an amenable number.

21160137237 is a deficient number, since it is larger than the sum of its proper divisors (7815906699).

21160137237 is a wasteful number, since it uses less digits than its factorization.

21160137237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190631907.

The product of its (nonzero) digits is 10584, while the sum is 33.

The spelling of 21160137237 in words is "twenty-one billion, one hundred sixty million, one hundred thirty-seven thousand, two hundred thirty-seven".