15543114061 has 2 divisors, whose sum is σ = 15543114062. Its totient is φ = 15543114060.

The previous prime is 15543114047. The next prime is 15543114071. The reversal of 15543114061 is 16041134551.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14527480900 + 1015633161 = 120530^2 + 31869^2 .

It is a cyclic number.

It is not a de Polignac number, because 15543114061 - 2¹³ = 15543105869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15543114001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7771557030 + 7771557031.

It is an arithmetic number, because the mean of its divisors is an integer number (7771557031).

Almost surely, 2^15543114061 is an apocalyptic number.

It is an amenable number.

15543114061 is a deficient number, since it is larger than the sum of its proper divisors (1).

15543114061 is an equidigital number, since it uses as much as digits as its factorization.

15543114061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7200, while the sum is 31.

The spelling of 15543114061 in words is "fifteen billion, five hundred forty-three million, one hundred fourteen thousand, sixty-one".