5557985664 has 128 divisors (see below), whose sum is σ = 18406414080. Its totient is φ = 1443624960.

The previous prime is 5557985651. The next prime is 5557985677. The reversal of 5557985664 is 4665897555.

It is an interprime number because it is at equal distance from previous prime (5557985651) and next prime (5557985677).

It is a tau number, because it is divible by the number of its divisors (128).

It is a junction number, because it is equal to n+sod(n) for n = 5557985598 and 5557985607.

It is a congruent 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, 64419 + ... + 123554.

It is an arithmetic number, because the mean of its divisors is an integer number (143800110).

Almost surely, 2^5557985664 is an apocalyptic number.

It is an amenable number.

5557985664 is an abundant number, since it is smaller than the sum of its proper divisors (12848428416).

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

5557985664 is a wasteful number, since it uses less digits than its factorization.

5557985664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188008 (or 187996 counting only the distinct ones).

The product of its digits is 45360000, while the sum is 60.

The square root of 5557985664 is about 74551.8991307398. The cubic root of 5557985664 is about 1771.3558152170.

The spelling of 5557985664 in words is "five billion, five hundred fifty-seven million, nine hundred eighty-five thousand, six hundred sixty-four".