53665265132964 has 45 divisors (see below), whose sum is σ = 140291948317521. Its totient is φ = 17888377757040.

The previous prime is 53665265132959. The next prime is 53665265132981. The reversal of 53665265132964 is 46923156256635.

The square root of 53665265132964 is 7325658.

It is a perfect power (a square), and thus also a powerful number.

53665265132964 is a `hidden beast` number, since 5 + 3 + 6 + 6 + 5 + 26 + 513 + 2 + 96 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 36313375019364 + 17351890113600 = 6026058^2 + 4165560^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 131658354 + ... + 132065334.

Almost surely, 2^{53665265132964} is an apocalyptic number.

53665265132964 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

53665265132964 is the 7325658-th square number.

It is an amenable number.

53665265132964 is an abundant number, since it is smaller than the sum of its proper divisors (86626683184557).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53665265132964 is an frugal number, since it uses more digits than its factorization.

53665265132964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 813978 (or 406986 counting only the distinct ones).

The product of its digits is 209952000, while the sum is 63.

The spelling of 53665265132964 in words is "fifty-three trillion, six hundred sixty-five billion, two hundred sixty-five million, one hundred thirty-two thousand, nine hundred sixty-four".