161153309910720 has 224 divisors, whose sum is σ = 527374313312256. Its totient is φ = 41674371379200.

The previous prime is 161153309910713. The next prime is 161153309910737. The reversal of 161153309910720 is 27019903351161.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 161153309910720.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15222064 + ... + 23537583.

Almost surely, 2^{161153309910720} is an apocalyptic number.

161153309910720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

161153309910720 is an abundant number, since it is smaller than the sum of its proper divisors (366221003401536).

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

161153309910720 is a wasteful number, since it uses less digits than its factorization.

161153309910720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38759799 (or 38759789 counting only the distinct ones).

The product of its (nonzero) digits is 306180, while the sum is 48.

The spelling of 161153309910720 in words is "one hundred sixty-one trillion, one hundred fifty-three billion, three hundred nine million, nine hundred ten thousand, seven hundred twenty".