64671660118 has 16 divisors (see below), whose sum is σ = 104477377536. Its totient is φ = 29846237760.

The previous prime is 64671660103. The next prime is 64671660121. The reversal of 64671660118 is 81106617646.

It is a super-2 number, since 2×64671660118² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

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, 294130 + ... + 464602.

It is an arithmetic number, because the mean of its divisors is an integer number (6529836096).

Almost surely, 2^64671660118 is an apocalyptic number.

64671660118 is a deficient number, since it is larger than the sum of its proper divisors (39805717418).

64671660118 is a wasteful number, since it uses less digits than its factorization.

64671660118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185079.

The product of its (nonzero) digits is 290304, while the sum is 46.

The spelling of 64671660118 in words is "sixty-four billion, six hundred seventy-one million, six hundred sixty thousand, one hundred eighteen".