6615062150721 has 16 divisors (see below), whose sum is σ = 9058776987648. Its totient is φ = 4290702624000.

The previous prime is 6615062150693. The next prime is 6615062150761. The reversal of 6615062150721 is 1270512605166.

It is not a de Polignac number, because 6615062150721 - 2¹⁵ = 6615062117953 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6615062150761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2236921 + ... + 4270121.

It is an arithmetic number, because the mean of its divisors is an integer number (566173561728).

Almost surely, 2^{6615062150721} is an apocalyptic number.

It is an amenable number.

6615062150721 is a deficient number, since it is larger than the sum of its proper divisors (2443714836927).

6615062150721 is a wasteful number, since it uses less digits than its factorization.

6615062150721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2062552.

The product of its (nonzero) digits is 151200, while the sum is 42.

Adding to 6615062150721 its reverse (1270512605166), we get a palindrome (7885574755887).

The spelling of 6615062150721 in words is "six trillion, six hundred fifteen billion, sixty-two million, one hundred fifty thousand, seven hundred twenty-one".