61600011 has 16 divisors (see below), whose sum is σ = 90346368. Its totient is φ = 37330920.

The previous prime is 61600009. The next prime is 61600039. The reversal of 61600011 is 11000616.

It is not a de Polignac number, because 61600011 - 2¹ = 61600009 is a prime.

It is a super-2 number, since 2×61600011² = 7589122710400242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (61600111) 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, 3721 + ... + 11706.

It is an arithmetic number, because the mean of its divisors is an integer number (5646648).

Almost surely, 2^61600011 is an apocalyptic number.

61600011 is a deficient number, since it is larger than the sum of its proper divisors (28746357).

61600011 is a wasteful number, since it uses less digits than its factorization.

61600011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15463 (or 15441 counting only the distinct ones).

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

The square root of 61600011 is about 7848.5674489043. The cubic root of 61600011 is about 394.9361879506.

Adding to 61600011 its reverse (11000616), we get a palindrome (72600627).

The spelling of 61600011 in words is "sixty-one million, six hundred thousand, eleven".