161346654 has 56 divisors (see below), whose sum is σ = 414727920. Its totient is φ = 46096128.

The previous prime is 161346641. The next prime is 161346673. The reversal of 161346654 is 456643161.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 27 ways as a sum of consecutive naturals, for example, 2302 + ... + 18110.

Almost surely, 2^161346654 is an apocalyptic number.

161346654 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 161346654, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (207363960).

161346654 is an abundant number, since it is smaller than the sum of its proper divisors (253381266).

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

161346654 is an equidigital number, since it uses as much as digits as its factorization.

161346654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15836 (or 15821 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 161346654 is about 12702.2302766089. The cubic root of 161346654 is about 544.4023457136.

The spelling of 161346654 in words is "one hundred sixty-one million, three hundred forty-six thousand, six hundred fifty-four".