161364654 has 48 divisors (see below), whose sum is σ = 385734960. Its totient is φ = 48343680.

The previous prime is 161364647. The next prime is 161364661. The reversal of 161364654 is 456463161.

It is a happy number.

161364654 is a `hidden beast` number, since 1 + 6 + 1 + 3 + 646 + 5 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (161364647) and next prime (161364661).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13044 + ... + 22200.

It is an arithmetic number, because the mean of its divisors is an integer number (8036145).

Almost surely, 2^161364654 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 161364654, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (192867480).

161364654 is an abundant number, since it is smaller than the sum of its proper divisors (224370306).

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

161364654 is a wasteful number, since it uses less digits than its factorization.

161364654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9265 (or 9262 counting only the distinct ones).

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

The square root of 161364654 is about 12702.9387938382. The cubic root of 161364654 is about 544.4225896575.

The spelling of 161364654 in words is "one hundred sixty-one million, three hundred sixty-four thousand, six hundred fifty-four".