6116661401 has 4 divisors (see below), whose sum is σ = 6281976612. Its totient is φ = 5951346192.

The previous prime is 6116661389. The next prime is 6116661407. The reversal of 6116661401 is 1041666116.

6116661401 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5760961801 + 355699600 = 75901^2 + 18860^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6116661401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6116661407) 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, 82657550 + ... + 82657623.

It is an arithmetic number, because the mean of its divisors is an integer number (1570494153).

Almost surely, 2^6116661401 is an apocalyptic number.

It is an amenable number.

6116661401 is a deficient number, since it is larger than the sum of its proper divisors (165315211).

6116661401 is a wasteful number, since it uses less digits than its factorization.

6116661401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165315210.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 6116661401 is about 78209.0877136411. The cubic root of 6116661401 is about 1828.8221790802.

The spelling of 6116661401 in words is "six billion, one hundred sixteen million, six hundred sixty-one thousand, four hundred one".