61000605111 has 32 divisors (see below), whose sum is σ = 84449041600. Its totient is φ = 39135052800.

The previous prime is 61000605101. The next prime is 61000605119. The reversal of 61000605111 is 11150600016.

It is not a de Polignac number, because 61000605111 - 2⁶ = 61000605047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61000605119) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7267305 + ... + 7275693.

It is an arithmetic number, because the mean of its divisors is an integer number (2639032550).

Almost surely, 2^61000605111 is an apocalyptic number.

61000605111 is a deficient number, since it is larger than the sum of its proper divisors (23448436489).

61000605111 is a wasteful number, since it uses less digits than its factorization.

61000605111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9139.

The product of its (nonzero) digits is 180, while the sum is 21.

The spelling of 61000605111 in words is "sixty-one billion, six hundred five thousand, one hundred eleven".