201513545555 has 16 divisors (see below), whose sum is σ = 277793367744. Its totient is φ = 137464750080.

The previous prime is 201513545509. The next prime is 201513545587. The reversal of 201513545555 is 555545315102.

It is not a de Polignac number, because 201513545555 - 2¹⁴ = 201513529171 is a prime.

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, 14909126 + ... + 14922635.

It is an arithmetic number, because the mean of its divisors is an integer number (17362085484).

Almost surely, 2^201513545555 is an apocalyptic number.

201513545555 is a deficient number, since it is larger than the sum of its proper divisors (76279822189).

201513545555 is a wasteful number, since it uses less digits than its factorization.

201513545555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29831966.

The product of its (nonzero) digits is 375000, while the sum is 41.

The spelling of 201513545555 in words is "two hundred one billion, five hundred thirteen million, five hundred forty-five thousand, five hundred fifty-five".