61166506 has 8 divisors (see below), whose sum is σ = 93987684. Its totient is φ = 29837280.

The previous prime is 61166489. The next prime is 61166519. The reversal of 61166506 is 60566116.

It can be written as a sum of positive squares in 2 ways, for example, as 56927025 + 4239481 = 7545^2 + 2059^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 372885 + ... + 373048.

Almost surely, 2^61166506 is an apocalyptic number.

61166506 is a deficient number, since it is larger than the sum of its proper divisors (32821178).

61166506 is a wasteful number, since it uses less digits than its factorization.

61166506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 745976.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 61166506 is about 7820.9018661533. The cubic root of 61166506 is about 394.0075625336.

The spelling of 61166506 in words is "sixty-one million, one hundred sixty-six thousand, five hundred six".