667296400753 has 4 divisors (see below), whose sum is σ = 667298598628. Its totient is φ = 667294202880.

The previous prime is 667296400739. The next prime is 667296400759. The reversal of 667296400753 is 357004692766.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4737844224 + 662558556529 = 68832^2 + 813977^2 .

It is a cyclic number.

It is not a de Polignac number, because 667296400753 - 2²¹ = 667294303601 is a prime.

It is a super-3 number, since 3×667296400753³ (a number of 36 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 667296400694 and 667296400703.

It is not an unprimeable number, because it can be changed into a prime (667296400759) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 553176 + ... + 1280857.

It is an arithmetic number, because the mean of its divisors is an integer number (166824649657).

Almost surely, 2^667296400753 is an apocalyptic number.

It is an amenable number.

667296400753 is a deficient number, since it is larger than the sum of its proper divisors (2197875).

667296400753 is a wasteful number, since it uses less digits than its factorization.

667296400753 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2197874.

The product of its (nonzero) digits is 11430720, while the sum is 55.

The spelling of 667296400753 in words is "six hundred sixty-seven billion, two hundred ninety-six million, four hundred thousand, seven hundred fifty-three".