153415666121 has 2 divisors, whose sum is σ = 153415666122. Its totient is φ = 153415666120.

The previous prime is 153415666111. The next prime is 153415666147. The reversal of 153415666121 is 121666514351.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 130078520896 + 23337145225 = 360664^2 + 152765^2 .

It is a cyclic number.

It is not a de Polignac number, because 153415666121 - 2²² = 153411471817 is a prime.

It is a super-2 number, since 2×153415666121² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (153415666111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76707833060 + 76707833061.

It is an arithmetic number, because the mean of its divisors is an integer number (76707833061).

Almost surely, 2^153415666121 is an apocalyptic number.

It is an amenable number.

153415666121 is a deficient number, since it is larger than the sum of its proper divisors (1).

153415666121 is an equidigital number, since it uses as much as digits as its factorization.

153415666121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 129600, while the sum is 41.

The spelling of 153415666121 in words is "one hundred fifty-three billion, four hundred fifteen million, six hundred sixty-six thousand, one hundred twenty-one".