64117455471146 has 32 divisors (see below), whose sum is σ = 126218914398720. Its totient is φ = 23666046447600.

The previous prime is 64117455471119. The next prime is 64117455471161.

64117455471146 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×64117455471146² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 64117455471091 and 64117455471100.

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, 10956500060 + ... + 10956505911.

It is an arithmetic number, because the mean of its divisors is an integer number (3944341074960).

Almost surely, 2^{64117455471146} is an apocalyptic number.

64117455471146 is a deficient number, since it is larger than the sum of its proper divisors (62101458927574).

64117455471146 is a wasteful number, since it uses less digits than its factorization.

64117455471146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21913006010.

The product of its digits is 11289600, while the sum is 56.

The spelling of 64117455471146 in words is "sixty-four trillion, one hundred seventeen billion, four hundred fifty-five million, four hundred seventy-one thousand, one hundred forty-six".