6746366520 has 48 divisors (see below), whose sum is σ = 21925692360. Its totient is φ = 1799030976.

The previous prime is 6746366503. The next prime is 6746366521. The reversal of 6746366520 is 256636476.

6746366520 is a `hidden beast` number, since 6 + 7 + 4 + 63 + 66 + 520 = 666.

It is a super-2 number, since 2×6746366520² = 91026922444353820800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6746366521) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9369594 + ... + 9370313.

Almost surely, 2^6746366520 is an apocalyptic number.

6746366520 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6746366520 is an abundant number, since it is smaller than the sum of its proper divisors (15179325840).

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

6746366520 is a wasteful number, since it uses less digits than its factorization.

6746366520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18739924 (or 18739917 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 45.

The square root of 6746366520 is about 82136.2679941084. The cubic root of 6746366520 is about 1889.5424104275.

The spelling of 6746366520 in words is "six billion, seven hundred forty-six million, three hundred sixty-six thousand, five hundred twenty".