103111355646 has 64 divisors (see below), whose sum is σ = 248537721600. Its totient is φ = 31498292448.

The previous prime is 103111355617. The next prime is 103111355687. The reversal of 103111355646 is 646553111301.

103111355646 is a `hidden beast` number, since 1 + 0 + 3 + 1 + 1 + 1 + 3 + 5 + 5 + 646 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 103111355646.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 430776 + ... + 625931.

It is an arithmetic number, because the mean of its divisors is an integer number (3883401900).

Almost surely, 2^103111355646 is an apocalyptic number.

103111355646 is an abundant number, since it is smaller than the sum of its proper divisors (145426365954).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

103111355646 is a wasteful number, since it uses less digits than its factorization.

103111355646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1056870 (or 1056864 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

Adding to 103111355646 its reverse (646553111301), we get a palindrome (749664466947).

The spelling of 103111355646 in words is "one hundred three billion, one hundred eleven million, three hundred fifty-five thousand, six hundred forty-six".