1618016560 has 20 divisors (see below), whose sum is σ = 3761888688. Its totient is φ = 647206592.

The previous prime is 1618016557. The next prime is 1618016563. The reversal of 1618016560 is 656108161.

It is an interprime number because it is at equal distance from previous prime (1618016557) and next prime (1618016563).

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (1618016563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10112524 + ... + 10112683.

Almost surely, 2^1618016560 is an apocalyptic number.

1618016560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1618016560 is an abundant number, since it is smaller than the sum of its proper divisors (2143872128).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1618016560 is a wasteful number, since it uses less digits than its factorization.

1618016560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20225220 (or 20225214 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 1618016560 is about 40224.5765670690. The cubic root of 1618016560 is about 1173.9807814737.

The spelling of 1618016560 in words is "one billion, six hundred eighteen million, sixteen thousand, five hundred sixty".