264420461553 has 4 divisors (see below), whose sum is σ = 352560615408. Its totient is φ = 176280307700.

The previous prime is 264420461531. The next prime is 264420461567. The reversal of 264420461553 is 355164024462.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 264420461553 - 2²¹ = 264418364401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (264420461593) 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, 44070076923 + ... + 44070076928.

It is an arithmetic number, because the mean of its divisors is an integer number (88140153852).

Almost surely, 2^264420461553 is an apocalyptic number.

It is an amenable number.

264420461553 is a deficient number, since it is larger than the sum of its proper divisors (88140153855).

264420461553 is an equidigital number, since it uses as much as digits as its factorization.

264420461553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88140153854.

The product of its (nonzero) digits is 691200, while the sum is 42.

The spelling of 264420461553 in words is "two hundred sixty-four billion, four hundred twenty million, four hundred sixty-one thousand, five hundred fifty-three".