15451551163 has 2 divisors, whose sum is σ = 15451551164. Its totient is φ = 15451551162.

The previous prime is 15451551113. The next prime is 15451551169. The reversal of 15451551163 is 36115515451.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15451551163 is a prime.

It is not a weakly prime, because it can be changed into another prime (15451551169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7725775581 + 7725775582.

It is an arithmetic number, because the mean of its divisors is an integer number (7725775582).

Almost surely, 2^15451551163 is an apocalyptic number.

15451551163 is a deficient number, since it is larger than the sum of its proper divisors (1).

15451551163 is an equidigital number, since it uses as much as digits as its factorization.

15451551163 is an evil number, because the sum of its binary digits is even.

The product of its digits is 45000, while the sum is 37.

The spelling of 15451551163 in words is "fifteen billion, four hundred fifty-one million, five hundred fifty-one thousand, one hundred sixty-three".