6701625561 has 4 divisors (see below), whose sum is σ = 8935500752. Its totient is φ = 4467750372.

The previous prime is 6701625517. The next prime is 6701625563. The reversal of 6701625561 is 1655261076.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 6701625561 - 2¹³ = 6701617369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6701625563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1116937591 + ... + 1116937596.

It is an arithmetic number, because the mean of its divisors is an integer number (2233875188).

Almost surely, 2^6701625561 is an apocalyptic number.

It is an amenable number.

6701625561 is a deficient number, since it is larger than the sum of its proper divisors (2233875191).

6701625561 is a wasteful number, since it uses less digits than its factorization.

6701625561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2233875190.

The product of its (nonzero) digits is 75600, while the sum is 39.

The square root of 6701625561 is about 81863.4568107162. The cubic root of 6701625561 is about 1885.3560820506.

The spelling of 6701625561 in words is "six billion, seven hundred one million, six hundred twenty-five thousand, five hundred sixty-one".