6220066515660 has 72 divisors (see below), whose sum is σ = 18873468156816. Its totient is φ = 1658162816640.

The previous prime is 6220066515571. The next prime is 6220066515697. The reversal of 6220066515660 is 665156600226.

It is a happy number.

6220066515660 is a `hidden beast` number, since 6 + 2 + 20 + 0 + 6 + 65 + 1 + 566 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4859034 + ... + 6004193.

It is an arithmetic number, because the mean of its divisors is an integer number (262131502178).

Almost surely, 2^{6220066515660} is an apocalyptic number.

6220066515660 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6220066515660 is an abundant number, since it is smaller than the sum of its proper divisors (12653401641156).

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

6220066515660 is a wasteful number, since it uses less digits than its factorization.

6220066515660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10866423 (or 10866418 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 45.

The spelling of 6220066515660 in words is "six trillion, two hundred twenty billion, sixty-six million, five hundred fifteen thousand, six hundred sixty".