6651206202226 has 4 divisors (see below), whose sum is σ = 9976809303342. Its totient is φ = 3325603101112.

The previous prime is 6651206202181. The next prime is 6651206202247. The reversal of 6651206202226 is 6222026021566.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 4185097154001 + 2466109048225 = 2045751^2 + 1570385^2 .

It is a super-2 number, since 2×6651206202226² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1662801550555 + ... + 1662801550558.

Almost surely, 2^{6651206202226} is an apocalyptic number.

6651206202226 is a deficient number, since it is larger than the sum of its proper divisors (3325603101116).

6651206202226 is a wasteful number, since it uses less digits than its factorization.

6651206202226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3325603101115.

The product of its (nonzero) digits is 207360, while the sum is 40.

The spelling of 6651206202226 in words is "six trillion, six hundred fifty-one billion, two hundred six million, two hundred two thousand, two hundred twenty-six".