61006105511 has 8 divisors (see below), whose sum is σ = 65705492160. Its totient is φ = 56307663072.

The previous prime is 61006105493. The next prime is 61006105541. The reversal of 61006105511 is 11550160016.

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 61006105511 - 2³⁴ = 43826236327 is a prime.

It is a super-2 number, since 2×61006105511² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61006105541) 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, 98900 + ... + 363033.

It is an arithmetic number, because the mean of its divisors is an integer number (8213186520).

Almost surely, 2^61006105511 is an apocalyptic number.

61006105511 is a deficient number, since it is larger than the sum of its proper divisors (4699386649).

61006105511 is a wasteful number, since it uses less digits than its factorization.

61006105511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 472105.

The product of its (nonzero) digits is 900, while the sum is 26.

Adding to 61006105511 its reverse (11550160016), we get a palindrome (72556265527).

The spelling of 61006105511 in words is "sixty-one billion, six million, one hundred five thousand, five hundred eleven".