6557700630 has 96 divisors (see below), whose sum is σ = 17514518112. Its totient is φ = 1562042880.

The previous prime is 6557700529. The next prime is 6557700659. The reversal of 6557700630 is 360077556.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

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, 366042 + ... + 383538.

It is an arithmetic number, because the mean of its divisors is an integer number (182442897).

Almost surely, 2^6557700630 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6557700630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8757259056).

6557700630 is an abundant number, since it is smaller than the sum of its proper divisors (10956817482).

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

6557700630 is a wasteful number, since it uses less digits than its factorization.

6557700630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17582 (or 17551 counting only the distinct ones).

The product of its (nonzero) digits is 132300, while the sum is 39.

The square root of 6557700630 is about 80979.6309574204. The cubic root of 6557700630 is about 1871.7615808065.

The spelling of 6557700630 in words is "six billion, five hundred fifty-seven million, seven hundred thousand, six hundred thirty".