61233173605 has 16 divisors (see below), whose sum is σ = 76114145520. Its totient is φ = 47234783232.

The previous prime is 61233173567. The next prime is 61233173611. The reversal of 61233173605 is 50637133216.

It can be written as a sum of positive squares in 8 ways, for example, as 29877156 + 61203296449 = 5466^2 + 247393^2 .

It is a cyclic number.

It is not a de Polignac number, because 61233173605 - 2²¹ = 61231076453 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 169164 + ... + 388693.

It is an arithmetic number, because the mean of its divisors is an integer number (4757134095).

Almost surely, 2^61233173605 is an apocalyptic number.

It is an amenable number.

61233173605 is a deficient number, since it is larger than the sum of its proper divisors (14880971915).

61233173605 is a wasteful number, since it uses less digits than its factorization.

61233173605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 558648.

The product of its (nonzero) digits is 68040, while the sum is 37.

The spelling of 61233173605 in words is "sixty-one billion, two hundred thirty-three million, one hundred seventy-three thousand, six hundred five".