6737552640 has 432 divisors, whose sum is σ = 28695209088. Its totient is φ = 1421328384.

The previous prime is 6737552621. The next prime is 6737552669. The reversal of 6737552640 is 462557376.

6737552640 is a `hidden beast` number, since 6 + 7 + 37 + 552 + 64 + 0 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1045107 + ... + 1051533.

Almost surely, 2^6737552640 is an apocalyptic number.

6737552640 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6737552640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14347604544).

6737552640 is an abundant number, since it is smaller than the sum of its proper divisors (21957656448).

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

6737552640 is a wasteful number, since it uses less digits than its factorization.

6737552640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6474 (or 6457 counting only the distinct ones).

The product of its (nonzero) digits is 1058400, while the sum is 45.

The square root of 6737552640 is about 82082.5964501611. The cubic root of 6737552640 is about 1888.7191792368.

The spelling of 6737552640 in words is "six billion, seven hundred thirty-seven million, five hundred fifty-two thousand, six hundred forty".