61732160 has 168 divisors, whose sum is σ = 177905664. Its totient is φ = 20321280.

The previous prime is 61732147. The next prime is 61732189. The reversal of 61732160 is 6123716.

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, 486017 + ... + 486143.

Almost surely, 2^61732160 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61732160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88952832).

61732160 is an abundant number, since it is smaller than the sum of its proper divisors (116173504).

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

61732160 is a wasteful number, since it uses less digits than its factorization.

61732160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189 (or 172 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 61732160 is about 7856.9816087350. The cubic root of 61732160 is about 395.2184018925.

Adding to 61732160 its reverse (6123716), we get a palindrome (67855876).

The spelling of 61732160 in words is "sixty-one million, seven hundred thirty-two thousand, one hundred sixty".