6355621197 has 24 divisors (see below), whose sum is σ = 9216951744. Its totient is φ = 4220221824.

The previous prime is 6355621157. The next prime is 6355621229. The reversal of 6355621197 is 7911265536.

6355621197 is a `hidden beast` number, since 6 + 3 + 5 + 5 + 621 + 19 + 7 = 666.

It is not a de Polignac number, because 6355621197 - 2¹⁵ = 6355588429 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6355621157) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3440128 + ... + 3441974.

It is an arithmetic number, because the mean of its divisors is an integer number (384039656).

Almost surely, 2^6355621197 is an apocalyptic number.

It is an amenable number.

6355621197 is a deficient number, since it is larger than the sum of its proper divisors (2861330547).

6355621197 is a wasteful number, since it uses less digits than its factorization.

6355621197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3169 (or 3166 counting only the distinct ones).

The product of its digits is 340200, while the sum is 45.

The square root of 6355621197 is about 79722.1499772805. The cubic root of 6355621197 is about 1852.3341559587.

The spelling of 6355621197 in words is "six billion, three hundred fifty-five million, six hundred twenty-one thousand, one hundred ninety-seven".