111654664451 has 4 divisors (see below), whose sum is σ = 121805088504. Its totient is φ = 101504240400.

The previous prime is 111654664411. The next prime is 111654664469. The reversal of 111654664451 is 154466456111.

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 111654664451 - 2³⁴ = 94474795267 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111654664411) 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, 5075212010 + ... + 5075212031.

It is an arithmetic number, because the mean of its divisors is an integer number (30451272126).

Almost surely, 2^111654664451 is an apocalyptic number.

111654664451 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

111654664451 is a deficient number, since it is larger than the sum of its proper divisors (10150424053).

111654664451 is a wasteful number, since it uses less digits than its factorization.

111654664451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10150424052.

The product of its digits is 345600, while the sum is 44.

The spelling of 111654664451 in words is "one hundred eleven billion, six hundred fifty-four million, six hundred sixty-four thousand, four hundred fifty-one".