6601701564 has 36 divisors (see below), whose sum is σ = 16916238976. Its totient is φ = 2170421568.

The previous prime is 6601701541. The next prime is 6601701577. The reversal of 6601701564 is 4651071066.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1253404 + ... + 1258659.

Almost surely, 2^6601701564 is an apocalyptic number.

It is an amenable number.

6601701564 is an abundant number, since it is smaller than the sum of its proper divisors (10314537412).

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

6601701564 is a wasteful number, since it uses less digits than its factorization.

6601701564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2512146 (or 2512141 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 6601701564 is about 81250.8557739548. The cubic root of 6601701564 is about 1875.9386412829.

The spelling of 6601701564 in words is "six billion, six hundred one million, seven hundred one thousand, five hundred sixty-four".