61601266 has 4 divisors (see below), whose sum is σ = 92401902. Its totient is φ = 30800632.

The previous prime is 61601231. The next prime is 61601279. The reversal of 61601266 is 66210616.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 61293241 + 308025 = 7829^2 + 555^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15400315 + ... + 15400318.

Almost surely, 2^61601266 is an apocalyptic number.

61601266 is a deficient number, since it is larger than the sum of its proper divisors (30800636).

61601266 is a wasteful number, since it uses less digits than its factorization.

61601266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30800635.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 61601266 is about 7848.6473993931. The cubic root of 61601266 is about 394.9388699931.

The spelling of 61601266 in words is "sixty-one million, six hundred one thousand, two hundred sixty-six".