161477634933 has 6 divisors (see below), whose sum is σ = 233245472694. Its totient is φ = 107651756616.

The previous prime is 161477634907. The next prime is 161477634973. The reversal of 161477634933 is 339436774161.

161477634933 is a `hidden beast` number, since 1 + 6 + 147 + 7 + 6 + 3 + 493 + 3 = 666.

161477634933 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 105860431044 + 55617203889 = 325362^2 + 235833^2 .

It is not a de Polignac number, because 161477634933 - 2¹⁰ = 161477633909 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 161477634933.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161477634973) 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 5 ways as a sum of consecutive naturals, for example, 8970979710 + ... + 8970979727.

It is an arithmetic number, because the mean of its divisors is an integer number (38874245449).

Almost surely, 2^161477634933 is an apocalyptic number.

It is an amenable number.

161477634933 is a deficient number, since it is larger than the sum of its proper divisors (71767837761).

161477634933 is a wasteful number, since it uses less digits than its factorization.

161477634933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17941959443 (or 17941959440 counting only the distinct ones).

The product of its digits is 6858432, while the sum is 54.

The spelling of 161477634933 in words is "one hundred sixty-one billion, four hundred seventy-seven million, six hundred thirty-four thousand, nine hundred thirty-three".