103421516655 has 48 divisors (see below), whose sum is σ = 172371457440. Its totient is φ = 52947181056.

The previous prime is 103421516651. The next prime is 103421516687. The reversal of 103421516655 is 556615124301.

It is not a de Polignac number, because 103421516655 - 2² = 103421516651 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103421516651) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 2158701 + ... + 2206089.

It is an arithmetic number, because the mean of its divisors is an integer number (3591072030).

Almost surely, 2^103421516655 is an apocalyptic number.

103421516655 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

103421516655 is a deficient number, since it is larger than the sum of its proper divisors (68949940785).

103421516655 is a wasteful number, since it uses less digits than its factorization.

103421516655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47628 (or 47599 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 39.

The spelling of 103421516655 in words is "one hundred three billion, four hundred twenty-one million, five hundred sixteen thousand, six hundred fifty-five".