111646630543 has 16 divisors (see below), whose sum is σ = 128768645376. Its totient is φ = 94821696000.

The previous prime is 111646630499. The next prime is 111646630609. The reversal of 111646630543 is 345036646111.

It is a cyclic number.

It is not a de Polignac number, because 111646630543 - 2²⁵ = 111613076111 is a prime.

It is a super-2 number, since 2×111646630543² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 111646630496 and 111646630505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111646639543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 174480 + ... + 503722.

It is an arithmetic number, because the mean of its divisors is an integer number (8048040336).

Almost surely, 2^111646630543 is an apocalyptic number.

111646630543 is a deficient number, since it is larger than the sum of its proper divisors (17122014833).

111646630543 is a wasteful number, since it uses less digits than its factorization.

111646630543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329694.

The product of its (nonzero) digits is 155520, while the sum is 40.

The spelling of 111646630543 in words is "one hundred eleven billion, six hundred forty-six million, six hundred thirty thousand, five hundred forty-three".