66416533514 has 16 divisors (see below), whose sum is σ = 101081856960. Its totient is φ = 32723080320.

The previous prime is 66416533481. The next prime is 66416533523. The reversal of 66416533514 is 41533561466.

It is a super-2 number, since 2×66416533514² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 144437 + ... + 392039.

It is an arithmetic number, because the mean of its divisors is an integer number (6317616060).

Almost surely, 2^66416533514 is an apocalyptic number.

66416533514 is a deficient number, since it is larger than the sum of its proper divisors (34665323446).

66416533514 is a wasteful number, since it uses less digits than its factorization.

66416533514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249565.

The product of its digits is 777600, while the sum is 44.

The spelling of 66416533514 in words is "sixty-six billion, four hundred sixteen million, five hundred thirty-three thousand, five hundred fourteen".