165437332153 has 2 divisors, whose sum is σ = 165437332154. Its totient is φ = 165437332152.

The previous prime is 165437332117. The next prime is 165437332189. The reversal of 165437332153 is 351233734561.

It is a happy number.

165437332153 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (165437332117) and next prime (165437332189).

It can be written as a sum of positive squares in only one way, i.e., 146660659369 + 18776672784 = 382963^2 + 137028^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-165437332153 is a prime.

It is not a weakly prime, because it can be changed into another prime (165437332553) 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, 82718666076 + 82718666077.

It is an arithmetic number, because the mean of its divisors is an integer number (82718666077).

Almost surely, 2^165437332153 is an apocalyptic number.

It is an amenable number.

165437332153 is a deficient number, since it is larger than the sum of its proper divisors (1).

165437332153 is an equidigital number, since it uses as much as digits as its factorization.

165437332153 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 680400, while the sum is 43.

The spelling of 165437332153 in words is "one hundred sixty-five billion, four hundred thirty-seven million, three hundred thirty-two thousand, one hundred fifty-three".