161276167120 has 80 divisors (see below), whose sum is σ = 397332122688. Its totient is φ = 60668610560.

The previous prime is 161276167027. The next prime is 161276167121. The reversal of 161276167120 is 21761672161.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161276167121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1732155 + ... + 1822885.

Almost surely, 2^161276167120 is an apocalyptic number.

161276167120 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 161276167120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (198666061344).

161276167120 is an abundant number, since it is smaller than the sum of its proper divisors (236055955568).

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

161276167120 is a wasteful number, since it uses less digits than its factorization.

161276167120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92068 (or 92062 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 40.

The spelling of 161276167120 in words is "one hundred sixty-one billion, two hundred seventy-six million, one hundred sixty-seven thousand, one hundred twenty".