15535045555 has 16 divisors (see below), whose sum is σ = 18830335680. Its totient is φ = 12302610048.

The previous prime is 15535045543. The next prime is 15535045577. The reversal of 15535045555 is 55554053551.

It is not a de Polignac number, because 15535045555 - 2¹⁹ = 15534521267 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, 1980381 + ... + 1988209.

It is an arithmetic number, because the mean of its divisors is an integer number (1176895980).

Almost surely, 2^15535045555 is an apocalyptic number.

15535045555 is a deficient number, since it is larger than the sum of its proper divisors (3295290125).

15535045555 is a wasteful number, since it uses less digits than its factorization.

15535045555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11790.

The product of its (nonzero) digits is 937500, while the sum is 43.

The spelling of 15535045555 in words is "fifteen billion, five hundred thirty-five million, forty-five thousand, five hundred fifty-five".