6657474012 has 48 divisors (see below), whose sum is σ = 17845293312. Its totient is φ = 1892275200.

The previous prime is 6657473971. The next prime is 6657474013. The reversal of 6657474012 is 2104747566.

It is a super-2 number, since 2×6657474012² = 88643920440910752288, which contains 22 as substring.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6657474013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 189114 + ... + 221537.

It is an arithmetic number, because the mean of its divisors is an integer number (371776944).

Almost surely, 2^6657474012 is an apocalyptic number.

It is an amenable number.

6657474012 is an abundant number, since it is smaller than the sum of its proper divisors (11187819300).

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

6657474012 is a wasteful number, since it uses less digits than its factorization.

6657474012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410858 (or 410856 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 42.

The square root of 6657474012 is about 81593.3453904177. The cubic root of 6657474012 is about 1881.2065979222.

The spelling of 6657474012 in words is "six billion, six hundred fifty-seven million, four hundred seventy-four thousand, twelve".