15530152440157 has 2 divisors, whose sum is σ = 15530152440158. Its totient is φ = 15530152440156.

The previous prime is 15530152440119. The next prime is 15530152440167. The reversal of 15530152440157 is 75104425103551.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15145710279001 + 384442161156 = 3891749^2 + 620034^2 .

It is a cyclic number.

It is not a de Polignac number, because 15530152440157 - 2⁷ = 15530152440029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15530152440167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7765076220078 + 7765076220079.

It is an arithmetic number, because the mean of its divisors is an integer number (7765076220079).

Almost surely, 2^{15530152440157} is an apocalyptic number.

It is an amenable number.

15530152440157 is a deficient number, since it is larger than the sum of its proper divisors (1).

15530152440157 is an equidigital number, since it uses as much as digits as its factorization.

15530152440157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 420000, while the sum is 43.

The spelling of 15530152440157 in words is "fifteen trillion, five hundred thirty billion, one hundred fifty-two million, four hundred forty thousand, one hundred fifty-seven".