6699154560 has 384 divisors, whose sum is σ = 25652298240. Its totient is φ = 1481195520.

The previous prime is 6699154543. The next prime is 6699154607. The reversal of 6699154560 is 654519966.

It is a tau number, because it is divible by the number of its divisors (384).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2915332 + ... + 2917628.

It is an arithmetic number, because the mean of its divisors is an integer number (66802860).

Almost surely, 2^6699154560 is an apocalyptic number.

6699154560 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6699154560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12826149120).

6699154560 is an abundant number, since it is smaller than the sum of its proper divisors (18953143680).

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

6699154560 is a wasteful number, since it uses less digits than its factorization.

6699154560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2364 (or 2345 counting only the distinct ones).

The product of its (nonzero) digits is 1749600, while the sum is 51.

The square root of 6699154560 is about 81848.3632090465. The cubic root of 6699154560 is about 1885.1243328319.

The spelling of 6699154560 in words is "six billion, six hundred ninety-nine million, one hundred fifty-four thousand, five hundred sixty".