61016933609 has 8 divisors (see below), whose sum is σ = 61092911880. Its totient is φ = 60940988416.

The previous prime is 61016933599. The next prime is 61016933617. The reversal of 61016933609 is 90633961016.

It can be written as a sum of positive squares in 4 ways, for example, as 71149225 + 60945784384 = 8435^2 + 246872^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 61016933609 - 2²⁰ = 61015885033 is a prime.

It is a super-2 number, since 2×61016933609² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 61016933609.

It is not an unprimeable number, because it can be changed into a prime (61016933639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7683689 + ... + 7691625.

It is an arithmetic number, because the mean of its divisors is an integer number (7636613985).

Almost surely, 2^61016933609 is an apocalyptic number.

It is an amenable number.

61016933609 is a deficient number, since it is larger than the sum of its proper divisors (75978271).

61016933609 is a wasteful number, since it uses less digits than its factorization.

61016933609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16539.

The product of its (nonzero) digits is 157464, while the sum is 44.

The spelling of 61016933609 in words is "sixty-one billion, sixteen million, nine hundred thirty-three thousand, six hundred nine".