6557901936 has 80 divisors (see below), whose sum is σ = 17258895360. Its totient is φ = 2145265920.

The previous prime is 6557901893. The next prime is 6557901983. The reversal of 6557901936 is 6391097556.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

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, 755670 + ... + 764298.

It is an arithmetic number, because the mean of its divisors is an integer number (215736192).

Almost surely, 2^6557901936 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6557901936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8629447680).

6557901936 is an abundant number, since it is smaller than the sum of its proper divisors (10700993424).

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

6557901936 is a wasteful number, since it uses less digits than its factorization.

6557901936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8934 (or 8928 counting only the distinct ones).

The product of its (nonzero) digits is 1530900, while the sum is 51.

The square root of 6557901936 is about 80980.8738900736. The cubic root of 6557901936 is about 1871.7807335046.

The spelling of 6557901936 in words is "six billion, five hundred fifty-seven million, nine hundred one thousand, nine hundred thirty-six".