6557131074 has 32 divisors (see below), whose sum is σ = 14209723584. Its totient is φ = 2005197120.

The previous prime is 6557131073. The next prime is 6557131099. The reversal of 6557131074 is 4701317556.

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

It is not an unprimeable number, because it can be changed into a prime (6557131073) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 245157 + ... + 270584.

It is an arithmetic number, because the mean of its divisors is an integer number (444053862).

Almost surely, 2^6557131074 is an apocalyptic number.

6557131074 is an abundant number, since it is smaller than the sum of its proper divisors (7652592510).

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

6557131074 is a wasteful number, since it uses less digits than its factorization.

6557131074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515922.

The product of its (nonzero) digits is 88200, while the sum is 39.

The square root of 6557131074 is about 80976.1142189473. The cubic root of 6557131074 is about 1871.7073898655.

The spelling of 6557131074 in words is "six billion, five hundred fifty-seven million, one hundred thirty-one thousand, seventy-four".