61488066 has 64 divisors (see below), whose sum is σ = 135659520. Its totient is φ = 18506880.

The previous prime is 61488041. The next prime is 61488071. The reversal of 61488066 is 66088416.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 448750 + ... + 448886.

It is an arithmetic number, because the mean of its divisors is an integer number (2119680).

Almost surely, 2^61488066 is an apocalyptic number.

61488066 is an abundant number, since it is smaller than the sum of its proper divisors (74171454).

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

61488066 is a wasteful number, since it uses less digits than its factorization.

61488066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319.

The product of its (nonzero) digits is 55296, while the sum is 39.

The square root of 61488066 is about 7841.4326497140. The cubic root of 61488066 is about 394.6968052006.

The spelling of 61488066 in words is "sixty-one million, four hundred eighty-eight thousand, sixty-six".