53662766543 has 4 divisors (see below), whose sum is σ = 54397873008. Its totient is φ = 52927660080.

The previous prime is 53662766533. The next prime is 53662766551. The reversal of 53662766543 is 34566726635.

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 53662766543 - 2³⁴ = 36482897359 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 (53662766533) 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, 367553123 + ... + 367553268.

It is an arithmetic number, because the mean of its divisors is an integer number (13599468252).

Almost surely, 2^53662766543 is an apocalyptic number.

53662766543 is a deficient number, since it is larger than the sum of its proper divisors (735106465).

53662766543 is an equidigital number, since it uses as much as digits as its factorization.

53662766543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 735106464.

The product of its digits is 16329600, while the sum is 53.

The spelling of 53662766543 in words is "fifty-three billion, six hundred sixty-two million, seven hundred sixty-six thousand, five hundred forty-three".