1616542904 has 8 divisors (see below), whose sum is σ = 3031017960. Its totient is φ = 808271448.

The previous prime is 1616542897. The next prime is 1616542919. The reversal of 1616542904 is 4092456161.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×1616542904² = 5226421920945506432, 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 as a sum of consecutive naturals, namely, 101033924 + ... + 101033939.

It is an arithmetic number, because the mean of its divisors is an integer number (378877245).

Almost surely, 2^1616542904 is an apocalyptic number.

It is an amenable number.

1616542904 is a deficient number, since it is larger than the sum of its proper divisors (1414475056).

1616542904 is a wasteful number, since it uses less digits than its factorization.

1616542904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202067869 (or 202067865 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 1616542904 is about 40206.2545383178. The cubic root of 1616542904 is about 1173.6242607473.

The spelling of 1616542904 in words is "one billion, six hundred sixteen million, five hundred forty-two thousand, nine hundred four".