6437697161 has 8 divisors (see below), whose sum is σ = 7460993664. Its totient is φ = 5440307040.

The previous prime is 6437697157. The next prime is 6437697169. The reversal of 6437697161 is 1617967346.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6437697161 - 2² = 6437697157 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6437697169) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6476060 + ... + 6477053.

It is an arithmetic number, because the mean of its divisors is an integer number (932624208).

Almost surely, 2^6437697161 is an apocalyptic number.

It is an amenable number.

6437697161 is a deficient number, since it is larger than the sum of its proper divisors (1023296503).

6437697161 is a wasteful number, since it uses less digits than its factorization.

6437697161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12953191.

The product of its digits is 1143072, while the sum is 50.

The square root of 6437697161 is about 80235.2613319107. The cubic root of 6437697161 is about 1860.2737063006.

The spelling of 6437697161 in words is "six billion, four hundred thirty-seven million, six hundred ninety-seven thousand, one hundred sixty-one".