15555453355 has 16 divisors (see below), whose sum is σ = 20114849664. Its totient is φ = 11480008320.

The previous prime is 15555453343. The next prime is 15555453359. The reversal of 15555453355 is 55335455551.

It is not a de Polignac number, because 15555453355 - 2⁵ = 15555453323 is a prime.

It is not an unprimeable number, because it can be changed into a prime (15555453359) 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, 33310 + ... + 179500.

It is an arithmetic number, because the mean of its divisors is an integer number (1257178104).

Almost surely, 2^15555453355 is an apocalyptic number.

15555453355 is a deficient number, since it is larger than the sum of its proper divisors (4559396309).

15555453355 is a wasteful number, since it uses less digits than its factorization.

15555453355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147846.

The product of its digits is 2812500, while the sum is 46.

The spelling of 15555453355 in words is "fifteen billion, five hundred fifty-five million, four hundred fifty-three thousand, three hundred fifty-five".