53665265132963 has 32 divisors (see below), whose sum is σ = 65252208718080. Its totient is φ = 43498788480000.

The previous prime is 53665265132959. The next prime is 53665265132981. The reversal of 53665265132963 is 36923156256635.

It is a Cunningham number, because it is equal to 7325658²-1.

It is not a de Polignac number, because 53665265132963 - 2² = 53665265132959 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53665265132896 and 53665265132905.

It is not an unprimeable number, because it can be changed into a prime (53665265132903) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 124320743 + ... + 124751663.

It is an arithmetic number, because the mean of its divisors is an integer number (2039131522440).

Almost surely, 2^{53665265132963} is an apocalyptic number.

53665265132963 is a deficient number, since it is larger than the sum of its proper divisors (11586943585117).

53665265132963 is a wasteful number, since it uses less digits than its factorization.

53665265132963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466019.

The product of its digits is 157464000, while the sum is 62.

The spelling of 53665265132963 in words is "fifty-three trillion, six hundred sixty-five billion, two hundred sixty-five million, one hundred thirty-two thousand, nine hundred sixty-three".