111111060600551 has 4 divisors (see below), whose sum is σ = 121212066109704. Its totient is φ = 101010055091400.

The previous prime is 111111060600541. The next prime is 111111060600557. The reversal of 111111060600551 is 155006060111111.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 111111060600551 - 2¹⁸ = 111111060338407 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 (111111060600557) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5050502754560 + ... + 5050502754581.

It is an arithmetic number, because the mean of its divisors is an integer number (30303016527426).

Almost surely, 2^{111111060600551} is an apocalyptic number.

111111060600551 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

111111060600551 is a deficient number, since it is larger than the sum of its proper divisors (10101005509153).

111111060600551 is a wasteful number, since it uses less digits than its factorization.

111111060600551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10101005509152.

The product of its (nonzero) digits is 900, while the sum is 29.

The spelling of 111111060600551 in words is "one hundred eleven trillion, one hundred eleven billion, sixty million, six hundred thousand, five hundred fifty-one".