6661065516402 has 16 divisors (see below), whose sum is σ = 14533233854112. Its totient is φ = 2018504701920.

The previous prime is 6661065516401. The next prime is 6661065516433. The reversal of 6661065516402 is 2046155601666.

It is not an unprimeable number, because it can be changed into a prime (6661065516401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50462617483 + ... + 50462617614.

It is an arithmetic number, because the mean of its divisors is an integer number (908327115882).

Almost surely, 2^{6661065516402} is an apocalyptic number.

6661065516402 is an abundant number, since it is smaller than the sum of its proper divisors (7872168337710).

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

6661065516402 is a wasteful number, since it uses less digits than its factorization.

6661065516402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100925235113.

The product of its (nonzero) digits is 1555200, while the sum is 48.

The spelling of 6661065516402 in words is "six trillion, six hundred sixty-one billion, sixty-five million, five hundred sixteen thousand, four hundred two".