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610616120557 = 6199710040221
BaseRepresentation
bin10001110001010111000…
…11101001010011101101
32011101002212221212010111
420320223203221103231
540001020211324212
61144302502340021
762054431246552
oct10705343512355
92141085855114
10610616120557
11215a62977053
129a41212a611
1345772198c51
14217a8188a29
1510d3bd7eea7
hex8e2b8e94ed

610616120557 has 8 divisors (see below), whose sum is σ = 621248776472. Its totient is φ = 600003547200.

The previous prime is 610616120537. The next prime is 610616120567. The reversal of 610616120557 is 755021616016.

It can be written as a sum of positive squares in 4 ways, for example, as 676988361 + 609939132196 = 26019^2 + 780986^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 610616120557 - 211 = 610616118509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (610616120537) 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, 4959294 + ... + 5080927.

It is an arithmetic number, because the mean of its divisors is an integer number (77656097059).

Almost surely, 2610616120557 is an apocalyptic number.

It is an amenable number.

610616120557 is a deficient number, since it is larger than the sum of its proper divisors (10632655915).

610616120557 is a wasteful number, since it uses less digits than its factorization.

610616120557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10041279.

The product of its (nonzero) digits is 75600, while the sum is 40.

The spelling of 610616120557 in words is "six hundred ten billion, six hundred sixteen million, one hundred twenty thousand, five hundred fifty-seven".

Divisors: 1 61 997 60817 10040221 612453481 10010100337 610616120557