1616442534 has 32 divisors (see below), whose sum is σ = 4105251840. Its totient is φ = 461840616.

The previous prime is 1616442493. The next prime is 1616442559. The reversal of 1616442534 is 4352446161.

1616442534 is a `hidden beast` number, since 1 + 6 + 1 + 644 + 2 + 5 + 3 + 4 = 666.

It is a super-2 number, since 2×1616442534² = 5225772931448682312, which contains 22 as substring.

It is a congruent number.

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, 2137774 + ... + 2138529.

It is an arithmetic number, because the mean of its divisors is an integer number (128289120).

Almost surely, 2^1616442534 is an apocalyptic number.

1616442534 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1616442534 is an abundant number, since it is smaller than the sum of its proper divisors (2488809306).

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

1616442534 is a wasteful number, since it uses less digits than its factorization.

1616442534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4276321 (or 4276315 counting only the distinct ones).

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

The square root of 1616442534 is about 40205.0063300580. The cubic root of 1616442534 is about 1173.5999704125.

Adding to 1616442534 its reverse (4352446161), we get a palindrome (5968888695).

The spelling of 1616442534 in words is "one billion, six hundred sixteen million, four hundred forty-two thousand, five hundred thirty-four".