264126675551 has 4 divisors (see below), whose sum is σ = 264178704792. Its totient is φ = 264074646312.

The previous prime is 264126675511. The next prime is 264126675559. The reversal of 264126675551 is 155576621462.

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

It is a cyclic number.

It is not a de Polignac number, because 264126675551 - 2¹⁸ = 264126413407 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 264126675551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264126675559) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26007005 + ... + 26017158.

It is an arithmetic number, because the mean of its divisors is an integer number (66044676198).

Almost surely, 2^264126675551 is an apocalyptic number.

264126675551 is a deficient number, since it is larger than the sum of its proper divisors (52029241).

264126675551 is an equidigital number, since it uses as much as digits as its factorization.

264126675551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52029240.

The product of its digits is 3024000, while the sum is 50.

The spelling of 264126675551 in words is "two hundred sixty-four billion, one hundred twenty-six million, six hundred seventy-five thousand, five hundred fifty-one".