616769554 has 32 divisors (see below), whose sum is σ = 1016262720. Its totient is φ = 279562752.

The previous prime is 616769513. The next prime is 616769561. The reversal of 616769554 is 455967616.

It is a junction number, because it is equal to n+sod(n) for n = 616769498 and 616769507.

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, 103837 + ... + 109615.

It is an arithmetic number, because the mean of its divisors is an integer number (31758210).

Almost surely, 2^616769554 is an apocalyptic number.

616769554 is a deficient number, since it is larger than the sum of its proper divisors (399493166).

616769554 is a wasteful number, since it uses less digits than its factorization.

616769554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5914.

The product of its digits is 1360800, while the sum is 49.

The square root of 616769554 is about 24834.8455602204. The cubic root of 616769554 is about 851.2183469664.

The spelling of 616769554 in words is "six hundred sixteen million, seven hundred sixty-nine thousand, five hundred fifty-four".