6701151661 has 4 divisors (see below), whose sum is σ = 6781888512. Its totient is φ = 6620414812.

The previous prime is 6701151641. The next prime is 6701151689. The reversal of 6701151661 is 1661511076.

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 a cyclic number.

It is not a de Polignac number, because 6701151661 - 2¹⁷ = 6701020589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6701151641) 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, 40368301 + ... + 40368466.

It is an arithmetic number, because the mean of its divisors is an integer number (1695472128).

Almost surely, 2^6701151661 is an apocalyptic number.

It is an amenable number.

6701151661 is a deficient number, since it is larger than the sum of its proper divisors (80736851).

6701151661 is an equidigital number, since it uses as much as digits as its factorization.

6701151661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80736850.

The product of its (nonzero) digits is 7560, while the sum is 34.

The square root of 6701151661 is about 81860.5623056671. The cubic root of 6701151661 is about 1885.3116405291.

The spelling of 6701151661 in words is "six billion, seven hundred one million, one hundred fifty-one thousand, six hundred sixty-one".