616948656 has 80 divisors (see below), whose sum is σ = 1642942464. Its totient is φ = 199348992.

The previous prime is 616948627. The next prime is 616948667. The reversal of 616948656 is 656849616.

It is a happy number.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 616948599 and 616948608.

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, 679755 + ... + 680661.

Almost surely, 2^616948656 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 616948656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (821471232).

616948656 is an abundant number, since it is smaller than the sum of its proper divisors (1025993808).

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

616948656 is a wasteful number, since it uses less digits than its factorization.

616948656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1338 (or 1332 counting only the distinct ones).

The product of its digits is 1866240, while the sum is 51.

The square root of 616948656 is about 24838.4511594423. The cubic root of 616948656 is about 851.3007333039.

The spelling of 616948656 in words is "six hundred sixteen million, nine hundred forty-eight thousand, six hundred fifty-six".