6420244498106 has 32 divisors (see below), whose sum is σ = 10057535421840. Its totient is φ = 3069970315776.

The previous prime is 6420244498051. The next prime is 6420244498163. The reversal of 6420244498106 is 6018944420246.

It can be written as a sum of positive squares in 8 ways, for example, as 1861699242481 + 4558545255625 = 1364441^2 + 2135075^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1774526 + ... + 3998678.

Almost surely, 2^{6420244498106} is an apocalyptic number.

6420244498106 is a deficient number, since it is larger than the sum of its proper divisors (3637290923734).

6420244498106 is a wasteful number, since it uses less digits than its factorization.

6420244498106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2224658.

The product of its (nonzero) digits is 2654208, while the sum is 50.

The spelling of 6420244498106 in words is "six trillion, four hundred twenty billion, two hundred forty-four million, four hundred ninety-eight thousand, one hundred six".