165153623562449 has 32 divisors (see below), whose sum is σ = 176836612043520. Its totient is φ = 153783705600000.

The previous prime is 165153623562427. The next prime is 165153623562467. The reversal of 165153623562449 is 944265326351561.

It is a cyclic number.

It is not a de Polignac number, because 165153623562449 - 2³⁶ = 165084904085713 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 165153623562391 and 165153623562400.

It is not an unprimeable number, because it can be changed into a prime (165153623502449) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 941704529 + ... + 941879889.

It is an arithmetic number, because the mean of its divisors is an integer number (5526144126360).

Almost surely, 2^{165153623562449} is an apocalyptic number.

165153623562449 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

165153623562449 is a deficient number, since it is larger than the sum of its proper divisors (11682988481071).

165153623562449 is a wasteful number, since it uses less digits than its factorization.

165153623562449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177593.

The product of its digits is 139968000, while the sum is 62.

The spelling of 165153623562449 in words is "one hundred sixty-five trillion, one hundred fifty-three billion, six hundred twenty-three million, five hundred sixty-two thousand, four hundred forty-nine".