6680977654 has 32 divisors (see below), whose sum is σ = 10862613216. Its totient is φ = 3063521280.

The previous prime is 6680977651. The next prime is 6680977661. The reversal of 6680977654 is 4567790866.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6680977651) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3119424 + ... + 3121564.

It is an arithmetic number, because the mean of its divisors is an integer number (339456663).

Almost surely, 2^6680977654 is an apocalyptic number.

6680977654 is a deficient number, since it is larger than the sum of its proper divisors (4181635562).

6680977654 is a wasteful number, since it uses less digits than its factorization.

6680977654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2880.

The product of its (nonzero) digits is 15240960, while the sum is 58.

The square root of 6680977654 is about 81737.2476536860. The cubic root of 6680977654 is about 1883.4178107372.

The spelling of 6680977654 in words is "six billion, six hundred eighty million, nine hundred seventy-seven thousand, six hundred fifty-four".