6557134665723 has 8 divisors (see below), whose sum is σ = 8742858105408. Its totient is φ = 4371417168264.

The previous prime is 6557134665721. The next prime is 6557134665733. The reversal of 6557134665723 is 3275664317556.

It is a happy number.

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

It is not a de Polignac number, because 6557134665723 - 2¹ = 6557134665721 is a prime.

It is a super-2 number, since 2×6557134665723² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6557134665721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3204736 + ... + 4835762.

It is an arithmetic number, because the mean of its divisors is an integer number (1092857263176).

Almost surely, 2^{6557134665723} is an apocalyptic number.

6557134665723 is a deficient number, since it is larger than the sum of its proper divisors (2185723439685).

6557134665723 is a wasteful number, since it uses less digits than its factorization.

6557134665723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2971113.

The product of its digits is 95256000, while the sum is 60.

The spelling of 6557134665723 in words is "six trillion, five hundred fifty-seven billion, one hundred thirty-four million, six hundred sixty-five thousand, seven hundred twenty-three".