61661832 has 32 divisors (see below), whose sum is σ = 158323200. Its totient is φ = 19998144.

The previous prime is 61661777. The next prime is 61661857. The reversal of 61661832 is 23816616.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 61661793 and 61661802.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33832 + ... + 35607.

It is an arithmetic number, because the mean of its divisors is an integer number (4947600).

Almost surely, 2^61661832 is an apocalyptic number.

It is an amenable number.

61661832 is an abundant number, since it is smaller than the sum of its proper divisors (96661368).

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

61661832 is a wasteful number, since it uses less digits than its factorization.

61661832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69485 (or 69481 counting only the distinct ones).

The product of its digits is 10368, while the sum is 33.

The square root of 61661832 is about 7852.5048233032. The cubic root of 61661832 is about 395.0682614496.

The spelling of 61661832 in words is "sixty-one million, six hundred sixty-one thousand, eight hundred thirty-two".