6220694591 has 4 divisors (see below), whose sum is σ = 6221269752. Its totient is φ = 6220119432.

The previous prime is 6220694527. The next prime is 6220694593. The reversal of 6220694591 is 1954960226.

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 6220694591 - 2⁶ = 6220694527 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 (6220694593) 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, 271040 + ... + 293093.

It is an arithmetic number, because the mean of its divisors is an integer number (1555317438).

Almost surely, 2^6220694591 is an apocalyptic number.

6220694591 is a deficient number, since it is larger than the sum of its proper divisors (575161).

6220694591 is a wasteful number, since it uses less digits than its factorization.

6220694591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 575160.

The product of its (nonzero) digits is 233280, while the sum is 44.

The square root of 6220694591 is about 78871.3800500536. The cubic root of 6220694591 is about 1839.1322498372.

The spelling of 6220694591 in words is "six billion, two hundred twenty million, six hundred ninety-four thousand, five hundred ninety-one".