161467776 has 128 divisors (see below), whose sum is σ = 501840000. Its totient is φ = 50969088.

The previous prime is 161467769. The next prime is 161467777. The reversal of 161467776 is 677764161.

161467776 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161467777) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64435 + ... + 66893.

It is an arithmetic number, because the mean of its divisors is an integer number (3920625).

Almost surely, 2^161467776 is an apocalyptic number.

161467776 is a gapful number since it is divisible by the number (16) 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 161467776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (250920000).

161467776 is an abundant number, since it is smaller than the sum of its proper divisors (340372224).

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

161467776 is a wasteful number, since it uses less digits than its factorization.

161467776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2501 (or 2483 counting only the distinct ones).

The product of its digits is 296352, while the sum is 45.

The square root of 161467776 is about 12706.9971275672. The cubic root of 161467776 is about 544.5385382038.

The spelling of 161467776 in words is "one hundred sixty-one million, four hundred sixty-seven thousand, seven hundred seventy-six".