1616115464 has 16 divisors (see below), whose sum is σ = 3071727420. Its totient is φ = 796988160.

The previous prime is 1616115463. The next prime is 1616115469. The reversal of 1616115464 is 4645116161.

It can be written as a sum of positive squares in 2 ways, for example, as 1605604900 + 10510564 = 40070^2 + 3242^2 .

It is a super-2 number, since 2×1616115464² = 5223658385959870592, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1616115461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1383077 + ... + 1384244.

Almost surely, 2^1616115464 is an apocalyptic number.

It is an amenable number.

1616115464 is a deficient number, since it is larger than the sum of its proper divisors (1455611956).

1616115464 is a wasteful number, since it uses less digits than its factorization.

1616115464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2767400 (or 2767396 counting only the distinct ones).

The product of its digits is 17280, while the sum is 35.

The square root of 1616115464 is about 40200.9385960079. The cubic root of 1616115464 is about 1173.5208099049.

The spelling of 1616115464 in words is "one billion, six hundred sixteen million, one hundred fifteen thousand, four hundred sixty-four".