104540123054215 has 16 divisors (see below), whose sum is σ = 129120560868672. Its totient is φ = 81193715000064.

The previous prime is 104540123054197. The next prime is 104540123054219. The reversal of 104540123054215 is 512450321045401.

It is a cyclic number.

It is not a de Polignac number, because 104540123054215 - 2⁵ = 104540123054183 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104540123054219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 618166819 + ... + 618335908.

It is an arithmetic number, because the mean of its divisors is an integer number (8070035054292).

Almost surely, 2^{104540123054215} is an apocalyptic number.

104540123054215 is a deficient number, since it is larger than the sum of its proper divisors (24580437814457).

104540123054215 is a wasteful number, since it uses less digits than its factorization.

104540123054215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1236503226.

The product of its (nonzero) digits is 96000, while the sum is 37.

Adding to 104540123054215 its reverse (512450321045401), we get a palindrome (616990444099616).

The spelling of 104540123054215 in words is "one hundred four trillion, five hundred forty billion, one hundred twenty-three million, fifty-four thousand, two hundred fifteen".