53121505466 has 8 divisors (see below), whose sum is σ = 80189788980. Its totient is φ = 26391575808.

The previous prime is 53121505457. The next prime is 53121505469. The reversal of 53121505466 is 66450512135.

It can be written as a sum of positive squares in 2 ways, for example, as 52989738025 + 131767441 = 230195^2 + 11479^2 .

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

It is not an unprimeable number, because it can be changed into a prime (53121505469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84588071 + ... + 84588698.

Almost surely, 2^53121505466 is an apocalyptic number.

53121505466 is a deficient number, since it is larger than the sum of its proper divisors (27068283514).

53121505466 is a wasteful number, since it uses less digits than its factorization.

53121505466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169176928.

The product of its (nonzero) digits is 108000, while the sum is 38.

The spelling of 53121505466 in words is "fifty-three billion, one hundred twenty-one million, five hundred five thousand, four hundred sixty-six".