161476416 has 98 divisors (see below), whose sum is σ = 480563682. Its totient is φ = 53809920.

The previous prime is 161476397. The next prime is 161476423. The reversal of 161476416 is 614674161.

It is a happy number.

161476416 is a `hidden beast` number, since 1 + 6 + 1 + 4 + 7 + 641 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 116640000 + 44836416 = 10800^2 + 6696^2 .

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 polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 44926 + ... + 48386.

Almost surely, 2^161476416 is an apocalyptic number.

161476416 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 161476416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (240281841).

161476416 is an abundant number, since it is smaller than the sum of its proper divisors (319087266).

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

161476416 is an frugal number, since it uses more digits than its factorization.

161476416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3491 (or 3466 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 161476416 is about 12707.3370931915. The cubic root of 161476416 is about 544.5482506248.

The spelling of 161476416 in words is "one hundred sixty-one million, four hundred seventy-six thousand, four hundred sixteen".