150566117521 has 2 divisors, whose sum is σ = 150566117522. Its totient is φ = 150566117520.

The previous prime is 150566117501. The next prime is 150566117591. The reversal of 150566117521 is 125711665051.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 127189236496 + 23376881025 = 356636^2 + 152895^2 .

It is a cyclic number.

It is not a de Polignac number, because 150566117521 - 2⁷ = 150566117393 is a prime.

It is not a weakly prime, because it can be changed into another prime (150566117501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75283058760 + 75283058761.

It is an arithmetic number, because the mean of its divisors is an integer number (75283058761).

Almost surely, 2^150566117521 is an apocalyptic number.

It is an amenable number.

150566117521 is a deficient number, since it is larger than the sum of its proper divisors (1).

150566117521 is an equidigital number, since it uses as much as digits as its factorization.

150566117521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 63000, while the sum is 40.

The spelling of 150566117521 in words is "one hundred fifty billion, five hundred sixty-six million, one hundred seventeen thousand, five hundred twenty-one".