103436721685 has 16 divisors (see below), whose sum is σ = 137315233152. Its totient is φ = 74167172800.

The previous prime is 103436721673. The next prime is 103436721691. The reversal of 103436721685 is 586127634301.

It is not a de Polignac number, because 103436721685 - 2⁹ = 103436721173 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13240234 + ... + 13248043.

It is an arithmetic number, because the mean of its divisors is an integer number (8582202072).

Almost surely, 2^103436721685 is an apocalyptic number.

It is an amenable number.

103436721685 is a deficient number, since it is larger than the sum of its proper divisors (33878511467).

103436721685 is a wasteful number, since it uses less digits than its factorization.

103436721685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26488364.

The product of its (nonzero) digits is 725760, while the sum is 46.

The spelling of 103436721685 in words is "one hundred three billion, four hundred thirty-six million, seven hundred twenty-one thousand, six hundred eighty-five".