117220633645 has 32 divisors (see below), whose sum is σ = 147934273536. Its totient is φ = 89072486400.

The previous prime is 117220633603. The next prime is 117220633669. The reversal of 117220633645 is 546336022711.

It is a happy number.

It is not a de Polignac number, because 117220633645 - 2¹⁵ = 117220600877 is a prime.

It is a super-3 number, since 3×117220633645³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 117220633598 and 117220633607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1808437 + ... + 1872133.

It is an arithmetic number, because the mean of its divisors is an integer number (4622946048).

Almost surely, 2^117220633645 is an apocalyptic number.

It is an amenable number.

117220633645 is a deficient number, since it is larger than the sum of its proper divisors (30713639891).

117220633645 is a wasteful number, since it uses less digits than its factorization.

117220633645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63981.

The product of its (nonzero) digits is 181440, while the sum is 40.

The spelling of 117220633645 in words is "one hundred seventeen billion, two hundred twenty million, six hundred thirty-three thousand, six hundred forty-five".