1616131888 has 40 divisors (see below), whose sum is σ = 3582027680. Its totient is φ = 691960320.

The previous prime is 1616131883. The next prime is 1616131921. The reversal of 1616131888 is 8881316161.

It is a super-2 number, since 2×1616131888² = 5223764558820889088, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1616131883) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120058 + ... + 132838.

It is an arithmetic number, because the mean of its divisors is an integer number (89550692).

Almost surely, 2^1616131888 is an apocalyptic number.

It is an amenable number.

1616131888 is an abundant number, since it is smaller than the sum of its proper divisors (1965895792).

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

1616131888 is a wasteful number, since it uses less digits than its factorization.

1616131888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13925 (or 13919 counting only the distinct ones).

The product of its digits is 55296, while the sum is 43.

The square root of 1616131888 is about 40201.1428693265. The cubic root of 1616131888 is about 1173.5247852480.

The spelling of 1616131888 in words is "one billion, six hundred sixteen million, one hundred thirty-one thousand, eight hundred eighty-eight".