15505516151 has 2 divisors, whose sum is σ = 15505516152. Its totient is φ = 15505516150.

The previous prime is 15505516123. The next prime is 15505516193. The reversal of 15505516151 is 15161550551.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15505516151 is a prime.

It is a super-2 number, since 2×15505516151² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15505516651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7752758075 + 7752758076.

It is an arithmetic number, because the mean of its divisors is an integer number (7752758076).

Almost surely, 2^15505516151 is an apocalyptic number.

15505516151 is a deficient number, since it is larger than the sum of its proper divisors (1).

15505516151 is an equidigital number, since it uses as much as digits as its factorization.

15505516151 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18750, while the sum is 35.

The spelling of 15505516151 in words is "fifteen billion, five hundred five million, five hundred sixteen thousand, one hundred fifty-one".