655481915 has 16 divisors (see below), whose sum is σ = 859299840. Its totient is φ = 476039520.

The previous prime is 655481873. The next prime is 655481923. The reversal of 655481915 is 519184556.

It is not a de Polignac number, because 655481915 - 2⁶ = 655481851 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, 32582 + ... + 48708.

It is an arithmetic number, because the mean of its divisors is an integer number (53706240).

Almost surely, 2^655481915 is an apocalyptic number.

655481915 is a deficient number, since it is larger than the sum of its proper divisors (203817925).

655481915 is a wasteful number, since it uses less digits than its factorization.

655481915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16882.

The product of its digits is 216000, while the sum is 44.

The square root of 655481915 is about 25602.3810416141. The cubic root of 655481915 is about 868.6674959864.

The spelling of 655481915 in words is "six hundred fifty-five million, four hundred eighty-one thousand, nine hundred fifteen".