6541215412620 has 48 divisors (see below), whose sum is σ = 20931889321728. Its totient is φ = 1495134951360.

The previous prime is 6541215412549. The next prime is 6541215412673. The reversal of 6541215412620 is 262145121456.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7787160786 + ... + 7787161625.

It is an arithmetic number, because the mean of its divisors is an integer number (436081027536).

Almost surely, 2^{6541215412620} is an apocalyptic number.

6541215412620 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6541215412620 is an abundant number, since it is smaller than the sum of its proper divisors (14390673909108).

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

6541215412620 is a wasteful number, since it uses less digits than its factorization.

6541215412620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15574322430 (or 15574322428 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 39.

The spelling of 6541215412620 in words is "six trillion, five hundred forty-one billion, two hundred fifteen million, four hundred twelve thousand, six hundred twenty".