616759650 has 192 divisors, whose sum is σ = 1852381440. Its totient is φ = 149990400.

The previous prime is 616759639. The next prime is 616759667. The reversal of 616759650 is 56957616.

616759650 is a `hidden beast` number, since 6 + 1 + 6 + 7 + 596 + 50 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 616759596 and 616759605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1982995 + ... + 1983305.

It is an arithmetic number, because the mean of its divisors is an integer number (9647820).

Almost surely, 2^616759650 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 616759650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (926190720).

616759650 is an abundant number, since it is smaller than the sum of its proper divisors (1235621790).

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

616759650 is a wasteful number, since it uses less digits than its factorization.

616759650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458 (or 447 counting only the distinct ones).

The product of its (nonzero) digits is 340200, while the sum is 45.

The square root of 616759650 is about 24834.6461621663. The cubic root of 616759650 is about 851.2137906933.

The spelling of 616759650 in words is "six hundred sixteen million, seven hundred fifty-nine thousand, six hundred fifty".