1000616656 has 40 divisors (see below), whose sum is σ = 2178610560. Its totient is φ = 441741696.

The previous prime is 1000616653. The next prime is 1000616671. The reversal of 1000616656 is 6566160001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000616653) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99796 + ... + 109363.

It is an arithmetic number, because the mean of its divisors is an integer number (54465264).

Almost surely, 2^1000616656 is an apocalyptic number.

1000616656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1000616656 is an abundant number, since it is smaller than the sum of its proper divisors (1177993904).

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

1000616656 is a wasteful number, since it uses less digits than its factorization.

1000616656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209203 (or 209197 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 1000616656 is about 31632.5252864832. The cubic root of 1000616656 is about 1000.2055097628.

Adding to 1000616656 its reverse (6566160001), we get a palindrome (7566776657).

It can be divided in two parts, 10006 and 16656, that added together give a palindrome (26662).

The spelling of 1000616656 in words is "one billion, six hundred sixteen thousand, six hundred fifty-six".