755123666321557 has 8 divisors (see below), whose sum is σ = 814595468643936. Its totient is φ = 695849773492272.

The previous prime is 755123666321527. The next prime is 755123666321581.

755123666321557 is nontrivially palindromic in base 10.

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 755123666321557 - 2¹¹ = 755123666319509 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 (755123666321527) 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, 49477365343 + ... + 49477380604.

It is an arithmetic number, because the mean of its divisors is an integer number (101824433580492).

Almost surely, 2^{755123666321557} is an apocalyptic number.

It is an amenable number.

755123666321557 is a deficient number, since it is larger than the sum of its proper divisors (59471802322379).

755123666321557 is a wasteful number, since it uses less digits than its factorization.

755123666321557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98954746547.

The product of its digits is 238140000, while the sum is 64.

The spelling of 755123666321557 in words is "seven hundred fifty-five trillion, one hundred twenty-three billion, six hundred sixty-six million, three hundred twenty-one thousand, five hundred fifty-seven".