20149222337 has 4 divisors (see below), whose sum is σ = 20490734640. Its totient is φ = 19807710036.

The previous prime is 20149222333. The next prime is 20149222339. The reversal of 20149222337 is 73322294102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 73322294102 = 2 ⋅36661147051.

It is a cyclic number.

It is not a de Polignac number, because 20149222337 - 2² = 20149222333 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20149222297 and 20149222306.

It is not an unprimeable number, because it can be changed into a prime (20149222333) 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 3 ways as a sum of consecutive naturals, for example, 170756063 + ... + 170756180.

It is an arithmetic number, because the mean of its divisors is an integer number (5122683660).

Almost surely, 2^20149222337 is an apocalyptic number.

It is an amenable number.

20149222337 is a deficient number, since it is larger than the sum of its proper divisors (341512303).

20149222337 is an equidigital number, since it uses as much as digits as its factorization.

20149222337 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341512302.

The product of its (nonzero) digits is 36288, while the sum is 35.

The spelling of 20149222337 in words is "twenty billion, one hundred forty-nine million, two hundred twenty-two thousand, three hundred thirty-seven".