61061050511 has 8 divisors (see below), whose sum is σ = 61501461504. Its totient is φ = 60621530040.

The previous prime is 61061050441. The next prime is 61061050541. The reversal of 61061050511 is 11505016016.

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 61061050511 - 2²² = 61056856207 is a prime.

It is a super-2 number, since 2×61061050511² (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 (61061050541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84695 + ... + 359576.

It is an arithmetic number, because the mean of its divisors is an integer number (7687682688).

Almost surely, 2^61061050511 is an apocalyptic number.

61061050511 is a deficient number, since it is larger than the sum of its proper divisors (440410993).

61061050511 is a wasteful number, since it uses less digits than its factorization.

61061050511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 445261.

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

Adding to 61061050511 its reverse (11505016016), we get a palindrome (72566066527).

The spelling of 61061050511 in words is "sixty-one billion, sixty-one million, fifty thousand, five hundred eleven".