161202277116 has 48 divisors (see below), whose sum is σ = 418119116800. Its totient is φ = 53710012656.

The previous prime is 161202277069. The next prime is 161202277123. The reversal of 161202277116 is 611772202161.

161202277116 is a `hidden beast` number, since 1 + 612 + 0 + 2 + 27 + 7 + 1 + 16 = 666.

161202277116 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 91510 + ... + 575133.

Almost surely, 2^161202277116 is an apocalyptic number.

It is an amenable number.

161202277116 is an abundant number, since it is smaller than the sum of its proper divisors (256916839684).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

161202277116 is a wasteful number, since it uses less digits than its factorization.

161202277116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 668895 (or 668887 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 36.

Adding to 161202277116 its reverse (611772202161), we get a palindrome (772974479277).

The spelling of 161202277116 in words is "one hundred sixty-one billion, two hundred two million, two hundred seventy-seven thousand, one hundred sixteen".