61000010061 has 8 divisors (see below), whose sum is σ = 81334651104. Its totient is φ = 40666021200.

The previous prime is 61000010039. The next prime is 61000010081. The reversal of 61000010061 is 16001000016.

61000010061 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 61000010061 - 2¹³ = 61000001869 is a prime.

It is a super-3 number, since 3×61000010061³ (a number of 33 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 61000010061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61000010081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130911 + ... + 373011.

It is an arithmetic number, because the mean of its divisors is an integer number (10166831388).

Almost surely, 2^61000010061 is an apocalyptic number.

It is an amenable number.

61000010061 is a deficient number, since it is larger than the sum of its proper divisors (20334641043).

61000010061 is a wasteful number, since it uses less digits than its factorization.

61000010061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326091.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 61000010061 its reverse (16001000016), we get a palindrome (77001010077).

The spelling of 61000010061 in words is "sixty-one billion, ten thousand, sixty-one".