165005150157 has 6 divisors (see below), whose sum is σ = 238340772462. Its totient is φ = 110003433432.

The previous prime is 165005150143. The next prime is 165005150159. The reversal of 165005150157 is 751051500561.

It is a happy number.

165005150157 is a `hidden beast` number, since 1 + 6 + 50 + 0 + 51 + 501 + 57 = 666.

It can be written as a sum of positive squares in only one way, i.e., 164591678601 + 413471556 = 405699^2 + 20334^2 .

It is not a de Polignac number, because 165005150157 - 2¹⁹ = 165004625869 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165005150159) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9166952778 + ... + 9166952795.

It is an arithmetic number, because the mean of its divisors is an integer number (39723462077).

Almost surely, 2^165005150157 is an apocalyptic number.

It is an amenable number.

165005150157 is a deficient number, since it is larger than the sum of its proper divisors (73335622305).

165005150157 is a wasteful number, since it uses less digits than its factorization.

165005150157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18333905579 (or 18333905576 counting only the distinct ones).

The product of its (nonzero) digits is 26250, while the sum is 36.

The spelling of 165005150157 in words is "one hundred sixty-five billion, five million, one hundred fifty thousand, one hundred fifty-seven".