103515215555 has 16 divisors (see below), whose sum is σ = 128176824384. Its totient is φ = 80202616320.

The previous prime is 103515215521. The next prime is 103515215569. The reversal of 103515215555 is 555512515301.

It is a de Polignac number, because none of the positive numbers 2^k-103515215555 is a prime.

It is a super-2 number, since 2×103515215555² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1814807 + ... + 1870976.

It is an arithmetic number, because the mean of its divisors is an integer number (8011051524).

Almost surely, 2^103515215555 is an apocalyptic number.

103515215555 is a deficient number, since it is larger than the sum of its proper divisors (24661608829).

103515215555 is a wasteful number, since it uses less digits than its factorization.

103515215555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3685966.

The product of its (nonzero) digits is 93750, while the sum is 38.

The spelling of 103515215555 in words is "one hundred three billion, five hundred fifteen million, two hundred fifteen thousand, five hundred fifty-five".