150666557 has 2 divisors, whose sum is σ = 150666558. Its totient is φ = 150666556.

The previous prime is 150666547. The next prime is 150666559. The reversal of 150666557 is 755666051.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 98624761 + 52041796 = 9931^2 + 7214^2 .

It is a cyclic number.

It is not a de Polignac number, because 150666557 - 2⁸ = 150666301 is a prime.

It is a super-2 number, since 2×150666557² = 45400822796468498, which contains 22 as substring.

Together with 150666559, 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 (150666559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75333278 + 75333279.

It is an arithmetic number, because the mean of its divisors is an integer number (75333279).

Almost surely, 2^150666557 is an apocalyptic number.

It is an amenable number.

150666557 is a deficient number, since it is larger than the sum of its proper divisors (1).

150666557 is an equidigital number, since it uses as much as digits as its factorization.

150666557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 189000, while the sum is 41.

The square root of 150666557 is about 12274.6306258070. The cubic root of 150666557 is about 532.1151466984.

The spelling of 150666557 in words is "one hundred fifty million, six hundred sixty-six thousand, five hundred fifty-seven".