105611604551 has 8 divisors (see below), whose sum is σ = 106668265008. Its totient is φ = 104555160000.

The previous prime is 105611604547. The next prime is 105611604569. The reversal of 105611604551 is 155406116501.

It is a happy number.

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 105611604551 - 2² = 105611604547 is a prime.

It is a super-2 number, since 2×105611604551² (a number of 23 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 (105611604521) 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, 1039331 + ... + 1136411.

It is an arithmetic number, because the mean of its divisors is an integer number (13333533126).

Almost surely, 2^105611604551 is an apocalyptic number.

105611604551 is a deficient number, since it is larger than the sum of its proper divisors (1056660457).

105611604551 is a wasteful number, since it uses less digits than its factorization.

105611604551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107953.

The product of its (nonzero) digits is 18000, while the sum is 35.

The spelling of 105611604551 in words is "one hundred five billion, six hundred eleven million, six hundred four thousand, five hundred fifty-one".