6161695571 has 4 divisors (see below), whose sum is σ = 6277954032. Its totient is φ = 6045437112.

The previous prime is 6161695549. The next prime is 6161695637. The reversal of 6161695571 is 1755961616.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 6161695571 - 2²² = 6157501267 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6161695871) 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, 58129151 + ... + 58129256.

It is an arithmetic number, because the mean of its divisors is an integer number (1569488508).

Almost surely, 2^6161695571 is an apocalyptic number.

6161695571 is a deficient number, since it is larger than the sum of its proper divisors (116258461).

6161695571 is a wasteful number, since it uses less digits than its factorization.

6161695571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116258460.

The product of its digits is 340200, while the sum is 47.

The square root of 6161695571 is about 78496.4685256604. The cubic root of 6161695571 is about 1833.2994683074.

The spelling of 6161695571 in words is "six billion, one hundred sixty-one million, six hundred ninety-five thousand, five hundred seventy-one".