153551511421181 has 2 divisors, whose sum is σ = 153551511421182. Its totient is φ = 153551511421180.

The previous prime is 153551511421157. The next prime is 153551511421183. The reversal of 153551511421181 is 181124115155351.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 143834207748100 + 9717303673081 = 11993090^2 + 3117259^2 .

It is a cyclic number.

It is not a de Polignac number, because 153551511421181 - 2¹⁰ = 153551511420157 is a prime.

It is a super-2 number, since 2×153551511421181² (a number of 29 digits) contains 22 as substring.

Together with 153551511421183, 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 (153551511421183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76775755710590 + 76775755710591.

It is an arithmetic number, because the mean of its divisors is an integer number (76775755710591).

Almost surely, 2^{153551511421181} is an apocalyptic number.

It is an amenable number.

153551511421181 is a deficient number, since it is larger than the sum of its proper divisors (1).

153551511421181 is an equidigital number, since it uses as much as digits as its factorization.

153551511421181 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 120000, while the sum is 44.

The spelling of 153551511421181 in words is "one hundred fifty-three trillion, five hundred fifty-one billion, five hundred eleven million, four hundred twenty-one thousand, one hundred eighty-one".