2145634416 has 60 divisors (see below), whose sum is σ = 6014394568. Its totient is φ = 714068352.

The previous prime is 2145634409. The next prime is 2145634429. The reversal of 2145634416 is 6144365412.

2145634416 is a `hidden beast` number, since 2 + 1 + 4 + 5 + 634 + 4 + 16 = 666.

It is a super-2 number, since 2×2145634416² = 9207494094247322112, which contains 22 as substring.

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 11 ways as a sum of consecutive naturals, for example, 81006 + ... + 104178.

Almost surely, 2^2145634416 is an apocalyptic number.

It is an amenable number.

2145634416 is an abundant number, since it is smaller than the sum of its proper divisors (3868760152).

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

2145634416 is a wasteful number, since it uses less digits than its factorization.

2145634416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23830 (or 23821 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The square root of 2145634416 is about 46320.9932535994. The cubic root of 2145634416 is about 1289.7887232861.

Adding to 2145634416 its reverse (6144365412), we get a palindrome (8289999828).

The spelling of 2145634416 in words is "two billion, one hundred forty-five million, six hundred thirty-four thousand, four hundred sixteen".