15553214123555 has 16 divisors (see below), whose sum is σ = 18715252845600. Its totient is φ = 12408326112000.

The previous prime is 15553214123453. The next prime is 15553214123569. The reversal of 15553214123555 is 55532141235551.

It is not a de Polignac number, because 15553214123555 - 2³⁴ = 15536034254371 is a prime.

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, 5478581 + ... + 7818009.

It is an arithmetic number, because the mean of its divisors is an integer number (1169703302850).

Almost surely, 2^{15553214123555} is an apocalyptic number.

15553214123555 is a deficient number, since it is larger than the sum of its proper divisors (3162038722045).

15553214123555 is a wasteful number, since it uses less digits than its factorization.

15553214123555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2343094.

The product of its digits is 2250000, while the sum is 47.

The spelling of 15553214123555 in words is "fifteen trillion, five hundred fifty-three billion, two hundred fourteen million, one hundred twenty-three thousand, five hundred fifty-five".