15671420122 has 8 divisors (see below), whose sum is σ = 23542061076. Its totient is φ = 7824066432.

The previous prime is 15671420069. The next prime is 15671420123. The reversal of 15671420122 is 22102417651.

It can be written as a sum of positive squares in 2 ways, for example, as 15298968721 + 372451401 = 123689^2 + 19299^2 .

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

It is not an unprimeable number, because it can be changed into a prime (15671420123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5820133 + ... + 5822824.

Almost surely, 2^15671420122 is an apocalyptic number.

15671420122 is a deficient number, since it is larger than the sum of its proper divisors (7870640954).

15671420122 is a wasteful number, since it uses less digits than its factorization.

15671420122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11643632.

The product of its (nonzero) digits is 6720, while the sum is 31.

Adding to 15671420122 its reverse (22102417651), we get a palindrome (37773837773).

The spelling of 15671420122 in words is "fifteen billion, six hundred seventy-one million, four hundred twenty thousand, one hundred twenty-two".