15540000545 has 16 divisors (see below), whose sum is σ = 18809702400. Its totient is φ = 12324654144.

The previous prime is 15540000517. The next prime is 15540000551. The reversal of 15540000545 is 54500004551.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 15540000545 - 2¹⁰ = 15539999521 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, 247424 + ... + 303806.

It is an arithmetic number, because the mean of its divisors is an integer number (1175606400).

Almost surely, 2^15540000545 is an apocalyptic number.

It is an amenable number.

15540000545 is a deficient number, since it is larger than the sum of its proper divisors (3269701855).

15540000545 is a wasteful number, since it uses less digits than its factorization.

15540000545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56864.

The product of its (nonzero) digits is 10000, while the sum is 29.

The spelling of 15540000545 in words is "fifteen billion, five hundred forty million, five hundred forty-five", and thus it is an aban number.