6654015620 has 48 divisors (see below), whose sum is σ = 16401262080. Its totient is φ = 2219716224.

The previous prime is 6654015587. The next prime is 6654015623. The reversal of 6654015620 is 265104566.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is not an unprimeable number, because it can be changed into a prime (6654015623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 637100 + ... + 647459.

It is an arithmetic number, because the mean of its divisors is an integer number (341692960).

Almost surely, 2^6654015620 is an apocalyptic number.

It is an amenable number.

6654015620 is an abundant number, since it is smaller than the sum of its proper divisors (9747246460).

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

6654015620 is a wasteful number, since it uses less digits than its factorization.

6654015620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1284612 (or 1284610 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 35.

The square root of 6654015620 is about 81572.1497816504. The cubic root of 6654015620 is about 1880.8807948362.

The spelling of 6654015620 in words is "six billion, six hundred fifty-four million, fifteen thousand, six hundred twenty".