6926216661 has 64 divisors (see below), whose sum is σ = 13293772800. Its totient is φ = 3461082048.

The previous prime is 6926216659. The next prime is 6926216663. The reversal of 6926216661 is 1666126296.

It is an interprime number because it is at equal distance from previous prime (6926216659) and next prime (6926216663).

It is not a de Polignac number, because 6926216661 - 2¹ = 6926216659 is a prime.

It is a super-2 number, since 2×6926216661² = 95944954470227977842, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6926216663) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 27501 + ... + 120866.

It is an arithmetic number, because the mean of its divisors is an integer number (207715200).

Almost surely, 2^6926216661 is an apocalyptic number.

It is an amenable number.

6926216661 is a deficient number, since it is larger than the sum of its proper divisors (6367556139).

6926216661 is a wasteful number, since it uses less digits than its factorization.

6926216661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148415 (or 148409 counting only the distinct ones).

The product of its digits is 279936, while the sum is 45.

The square root of 6926216661 is about 83223.8947718743. The cubic root of 6926216661 is about 1906.1863600419.

The spelling of 6926216661 in words is "six billion, nine hundred twenty-six million, two hundred sixteen thousand, six hundred sixty-one".