159612778751 has 2 divisors, whose sum is σ = 159612778752. Its totient is φ = 159612778750.

The previous prime is 159612778729. The next prime is 159612778753. The reversal of 159612778751 is 157877216951.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 159612778751 - 2⁶ = 159612778687 is a prime.

Together with 159612778753, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (159612778753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79806389375 + 79806389376.

It is an arithmetic number, because the mean of its divisors is an integer number (79806389376).

Almost surely, 2^159612778751 is an apocalyptic number.

159612778751 is a deficient number, since it is larger than the sum of its proper divisors (1).

159612778751 is an equidigital number, since it uses as much as digits as its factorization.

159612778751 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7408800, while the sum is 59.

The spelling of 159612778751 in words is "one hundred fifty-nine billion, six hundred twelve million, seven hundred seventy-eight thousand, seven hundred fifty-one".