6626561662 has 8 divisors (see below), whose sum is σ = 11359820016. Its totient is φ = 2839954992.

The previous prime is 6626561659. The next prime is 6626561663. The reversal of 6626561662 is 2661656266.

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

It is a super-2 number, since 2×6626561662² = 87822638920576404488, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6626561663) 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, 236662903 + ... + 236662930.

It is an arithmetic number, because the mean of its divisors is an integer number (1419977502).

Almost surely, 2^6626561662 is an apocalyptic number.

6626561662 is a deficient number, since it is larger than the sum of its proper divisors (4733258354).

6626561662 is a wasteful number, since it uses less digits than its factorization.

6626561662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473325842.

The product of its digits is 933120, while the sum is 46.

The square root of 6626561662 is about 81403.6956286384. The cubic root of 6626561662 is about 1878.2904390694.

The spelling of 6626561662 in words is "six billion, six hundred twenty-six million, five hundred sixty-one thousand, six hundred sixty-two".