6662634381 has 24 divisors (see below), whose sum is σ = 10371029760. Its totient is φ = 4097340576.

The previous prime is 6662634379. The next prime is 6662634389. The reversal of 6662634381 is 1834362666.

It is not a de Polignac number, because 6662634381 - 2¹ = 6662634379 is a prime.

It is a super-2 number, since 2×6662634381² = 88781393789766506322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6662634389) 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, 164140 + ... + 200666.

It is an arithmetic number, because the mean of its divisors is an integer number (432126240).

Almost surely, 2^6662634381 is an apocalyptic number.

It is an amenable number.

6662634381 is a deficient number, since it is larger than the sum of its proper divisors (3708395379).

6662634381 is a wasteful number, since it uses less digits than its factorization.

6662634381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38105 (or 38102 counting only the distinct ones).

The product of its digits is 746496, while the sum is 45.

The square root of 6662634381 is about 81624.9617519053. The cubic root of 6662634381 is about 1881.6925286242.

The spelling of 6662634381 in words is "six billion, six hundred sixty-two million, six hundred thirty-four thousand, three hundred eighty-one".