1616533974 has 48 divisors (see below), whose sum is σ = 3850127424. Its totient is φ = 486111600.

The previous prime is 1616533969. The next prime is 1616533993. The reversal of 1616533974 is 4793356161.

It is a happy number.

1616533974 is a `hidden beast` number, since 16 + 16 + 533 + 97 + 4 = 666.

It is a super-2 number, since 2×1616533974² = 5226364178192465352, 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 23 ways as a sum of consecutive naturals, for example, 5224 + ... + 57099.

It is an arithmetic number, because the mean of its divisors is an integer number (80210988).

Almost surely, 2^1616533974 is an apocalyptic number.

1616533974 is an abundant number, since it is smaller than the sum of its proper divisors (2233593450).

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

1616533974 is a wasteful number, since it uses less digits than its factorization.

1616533974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62473 (or 62470 counting only the distinct ones).

The product of its digits is 408240, while the sum is 45.

The square root of 1616533974 is about 40206.1434857908. The cubic root of 1616533974 is about 1173.6220996573.

The spelling of 1616533974 in words is "one billion, six hundred sixteen million, five hundred thirty-three thousand, nine hundred seventy-four".