61660803 has 16 divisors (see below), whose sum is σ = 83530656. Its totient is φ = 40454400.

The previous prime is 61660801. The next prime is 61660867. The reversal of 61660803 is 30806616.

It is not a de Polignac number, because 61660803 - 2¹ = 61660801 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61660801) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59175 + ... + 60207.

It is an arithmetic number, because the mean of its divisors is an integer number (5220666).

Almost surely, 2^61660803 is an apocalyptic number.

61660803 is a deficient number, since it is larger than the sum of its proper divisors (21869853).

61660803 is a wasteful number, since it uses less digits than its factorization.

61660803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1334.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 61660803 is about 7852.4393025352. The cubic root of 61660803 is about 395.0660638314.

The spelling of 61660803 in words is "sixty-one million, six hundred sixty thousand, eight hundred three".