61532166 has 16 divisors (see below), whose sum is σ = 123393600. Its totient is φ = 20455848.

The previous prime is 61532143. The next prime is 61532173. The reversal of 61532166 is 66123516.

It is a congruent number.

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, 11256 + ... + 15803.

It is an arithmetic number, because the mean of its divisors is an integer number (7712100).

Almost surely, 2^61532166 is an apocalyptic number.

61532166 is an abundant number, since it is smaller than the sum of its proper divisors (61861434).

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

61532166 is a wasteful number, since it uses less digits than its factorization.

61532166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27443.

The product of its digits is 6480, while the sum is 30.

The square root of 61532166 is about 7844.2441318460. The cubic root of 61532166 is about 394.7911431245.

The spelling of 61532166 in words is "sixty-one million, five hundred thirty-two thousand, one hundred sixty-six".