15557130019 has 2 divisors, whose sum is σ = 15557130020. Its totient is φ = 15557130018.

The previous prime is 15557130013. The next prime is 15557130031. The reversal of 15557130019 is 91003175551.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 15557130019 - 2⁷ = 15557129891 is a prime.

It is a super-2 number, since 2×15557130019² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 15557130019.

It is not a weakly prime, because it can be changed into another prime (15557130013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7778565009 + 7778565010.

It is an arithmetic number, because the mean of its divisors is an integer number (7778565010).

Almost surely, 2^15557130019 is an apocalyptic number.

15557130019 is a deficient number, since it is larger than the sum of its proper divisors (1).

15557130019 is an equidigital number, since it uses as much as digits as its factorization.

15557130019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23625, while the sum is 37.

The spelling of 15557130019 in words is "fifteen billion, five hundred fifty-seven million, one hundred thirty thousand, nineteen".