161353651100 has 72 divisors (see below), whose sum is σ = 352523197488. Its totient is φ = 64102233600.

The previous prime is 161353651099. The next prime is 161353651133. The reversal of 161353651100 is 1156353161.

161353651100 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 23 ways as a sum of consecutive naturals, for example, 36200072 + ... + 36204528.

Almost surely, 2^161353651100 is an apocalyptic number.

161353651100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 161353651100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (176261598744).

161353651100 is an abundant number, since it is smaller than the sum of its proper divisors (191169546388).

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

161353651100 is a wasteful number, since it uses less digits than its factorization.

161353651100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6855 (or 6848 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 32.

The spelling of 161353651100 in words is "one hundred sixty-one billion, three hundred fifty-three million, six hundred fifty-one thousand, one hundred".