7021507216066 has 24 divisors (see below), whose sum is σ = 12251932641216. Its totient is φ = 3009188143080.

The previous prime is 7021507216057. The next prime is 7021507216091. The reversal of 7021507216066 is 6606127051207.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12022675 + ... + 12593161.

It is an arithmetic number, because the mean of its divisors is an integer number (510497193384).

Almost surely, 2^{7021507216066} is an apocalyptic number.

7021507216066 is a deficient number, since it is larger than the sum of its proper divisors (5230425425150).

7021507216066 is a wasteful number, since it uses less digits than its factorization.

7021507216066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 696094 (or 696087 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 43.

The spelling of 7021507216066 in words is "seven trillion, twenty-one billion, five hundred seven million, two hundred sixteen thousand, sixty-six".