66016440581602 has 32 divisors (see below), whose sum is σ = 114349769073792. Its totient is φ = 27998139538944.

The previous prime is 66016440581561. The next prime is 66016440581713. The reversal of 66016440581602 is 20618504461066.

It is a super-3 number, since 3×66016440581602³ (a number of 42 digits) contains 333 as substring.

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, 10396093 + ... + 15495535.

It is an arithmetic number, because the mean of its divisors is an integer number (3573430283556).

Almost surely, 2^{66016440581602} is an apocalyptic number.

66016440581602 is a deficient number, since it is larger than the sum of its proper divisors (48333328492190).

66016440581602 is a wasteful number, since it uses less digits than its factorization.

66016440581602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5109082.

The product of its (nonzero) digits is 1658880, while the sum is 49.

The spelling of 66016440581602 in words is "sixty-six trillion, sixteen billion, four hundred forty million, five hundred eighty-one thousand, six hundred two".