6651979407360 has 1120 divisors, whose sum is σ = 27891851467392. Its totient is φ = 1484870123520.

The previous prime is 6651979407299. The next prime is 6651979407361. The reversal of 6651979407360 is 637049791566.

6651979407360 is a `hidden beast` number, since 6 + 6 + 5 + 197 + 9 + 407 + 36 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (1120).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (6651979407361) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 998642430 + ... + 998649090.

Almost surely, 2^{6651979407360} is an apocalyptic number.

6651979407360 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6651979407360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13945925733696).

6651979407360 is an abundant number, since it is smaller than the sum of its proper divisors (21239872060032).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6651979407360 is an equidigital number, since it uses as much as digits as its factorization.

6651979407360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6754 (or 6721 counting only the distinct ones).

The product of its (nonzero) digits is 51438240, while the sum is 63.

The spelling of 6651979407360 in words is "six trillion, six hundred fifty-one billion, nine hundred seventy-nine million, four hundred seven thousand, three hundred sixty".