6754660641 has 6 divisors (see below), whose sum is σ = 9756732050. Its totient is φ = 4503107088.

The previous prime is 6754660639. The next prime is 6754660651. The reversal of 6754660641 is 1460664576.

6754660641 is a `hidden beast` number, since 6 + 7 + 546 + 60 + 6 + 41 = 666.

It can be written as a sum of positive squares in only one way, i.e., 5895936225 + 858724416 = 76785^2 + 29304^2 .

It is not a de Polignac number, because 6754660641 - 2¹ = 6754660639 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6754660621) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 375258916 + ... + 375258933.

Almost surely, 2^6754660641 is an apocalyptic number.

It is an amenable number.

6754660641 is a deficient number, since it is larger than the sum of its proper divisors (3002071409).

6754660641 is a wasteful number, since it uses less digits than its factorization.

6754660641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 750517855 (or 750517852 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 45.

The square root of 6754660641 is about 82186.7424892847. The cubic root of 6754660641 is about 1890.3164406749.

The spelling of 6754660641 in words is "six billion, seven hundred fifty-four million, six hundred sixty thousand, six hundred forty-one".