5656765434545 has 48 divisors (see below), whose sum is σ = 7388369757648. Its totient is φ = 4154041221120.

The previous prime is 5656765434539. The next prime is 5656765434547. The reversal of 5656765434545 is 5454345676565.

5656765434545 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

It can be written as a sum of positive squares in 8 ways, for example, as 516380176 + 5656249054369 = 22724^2 + 2378287^2 .

It is not a de Polignac number, because 5656765434545 - 2²² = 5656761240241 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (5656765434547) by changing a digit.

It is an upside-down number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 15919457 + ... + 16270913.

It is an arithmetic number, because the mean of its divisors is an integer number (153924369951).

Almost surely, 2^{5656765434545} is an apocalyptic number.

It is an amenable number.

5656765434545 is a deficient number, since it is larger than the sum of its proper divisors (1731604323103).

5656765434545 is a wasteful number, since it uses less digits than its factorization.

5656765434545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351778 (or 351759 counting only the distinct ones).

The product of its digits is 907200000, while the sum is 65.

The spelling of 5656765434545 in words is "five trillion, six hundred fifty-six billion, seven hundred sixty-five million, four hundred thirty-four thousand, five hundred forty-five".