6620095440 has 160 divisors (see below), whose sum is σ = 26060117760. Its totient is φ = 1513161216.

The previous prime is 6620095439. The next prime is 6620095499. The reversal of 6620095440 is 445900266.

6620095440 is a `hidden beast` number, since 6 + 6 + 200 + 9 + 5 + 440 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 6620095395 and 6620095404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 203799 + ... + 234038.

It is an arithmetic number, because the mean of its divisors is an integer number (162875736).

Almost surely, 2^6620095440 is an apocalyptic number.

6620095440 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6620095440 is an abundant number, since it is smaller than the sum of its proper divisors (19440022320).

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

6620095440 is a wasteful number, since it uses less digits than its factorization.

6620095440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437866 (or 437854 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 6620095440 is about 81363.9689297419. The cubic root of 6620095440 is about 1877.6792927845.

The spelling of 6620095440 in words is "six billion, six hundred twenty million, ninety-five thousand, four hundred forty".