165153636764 has 24 divisors (see below), whose sum is σ = 293308003968. Its totient is φ = 81358986240.

The previous prime is 165153636761. The next prime is 165153636871. The reversal of 165153636764 is 467636351561.

165153636764 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165153636761) 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 in 7 ways as a sum of consecutive naturals, for example, 867857 + ... + 1040904.

It is an arithmetic number, because the mean of its divisors is an integer number (12221166832).

Almost surely, 2^165153636764 is an apocalyptic number.

It is an amenable number.

165153636764 is a deficient number, since it is larger than the sum of its proper divisors (128154367204).

165153636764 is a wasteful number, since it uses less digits than its factorization.

165153636764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1909085 (or 1909083 counting only the distinct ones).

The product of its digits is 8164800, while the sum is 53.

The spelling of 165153636764 in words is "one hundred sixty-five billion, one hundred fifty-three million, six hundred thirty-six thousand, seven hundred sixty-four".