1117654164 has 72 divisors (see below), whose sum is σ = 3093216672. Its totient is φ = 337452480.

The previous prime is 1117654147. The next prime is 1117654189. The reversal of 1117654164 is 4614567111.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 107082 + ... + 117054.

Almost surely, 2^1117654164 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1117654164, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1546608336).

1117654164 is an abundant number, since it is smaller than the sum of its proper divisors (1975562508).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1117654164 is a wasteful number, since it uses less digits than its factorization.

1117654164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10277 (or 10272 counting only the distinct ones).

The product of its digits is 20160, while the sum is 36.

The square root of 1117654164 is about 33431.3350615856. The cubic root of 1117654164 is about 1037.7732695562.

The spelling of 1117654164 in words is "one billion, one hundred seventeen million, six hundred fifty-four thousand, one hundred sixty-four".