157650043009 has 2 divisors, whose sum is σ = 157650043010. Its totient is φ = 157650043008.

The previous prime is 157650042971. The next prime is 157650043021. The reversal of 157650043009 is 900340056751.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 96890257984 + 60759785025 = 311272^2 + 246495^2 .

It is a cyclic number.

It is not a de Polignac number, because 157650043009 - 2¹⁹ = 157649518721 is a prime.

It is not a weakly prime, because it can be changed into another prime (157650043069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78825021504 + 78825021505.

It is an arithmetic number, because the mean of its divisors is an integer number (78825021505).

Almost surely, 2^157650043009 is an apocalyptic number.

It is an amenable number.

157650043009 is a deficient number, since it is larger than the sum of its proper divisors (1).

157650043009 is an equidigital number, since it uses as much as digits as its factorization.

157650043009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 113400, while the sum is 40.

The spelling of 157650043009 in words is "one hundred fifty-seven billion, six hundred fifty million, forty-three thousand, nine".