103556516646 has 64 divisors (see below), whose sum is σ = 229691884032. Its totient is φ = 30864000000.

The previous prime is 103556516599. The next prime is 103556516711. The reversal of 103556516646 is 646615655301.

It is a super-3 number, since 3×103556516646³ (a number of 34 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 103556516595 and 103556516604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 955126 + ... + 1058006.

It is an arithmetic number, because the mean of its divisors is an integer number (3588935688).

Almost surely, 2^103556516646 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 103556516646, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114845942016).

103556516646 is an abundant number, since it is smaller than the sum of its proper divisors (126135367386).

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

103556516646 is a wasteful number, since it uses less digits than its factorization.

103556516646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103149.

The product of its (nonzero) digits is 1944000, while the sum is 48.

The spelling of 103556516646 in words is "one hundred three billion, five hundred fifty-six million, five hundred sixteen thousand, six hundred forty-six".