54536821655465 has 32 divisors (see below), whose sum is σ = 69088885956000. Its totient is φ = 41269092157440.

The previous prime is 54536821655447. The next prime is 54536821655489. The reversal of 54536821655465 is 56455612863545.

It can be written as a sum of positive squares in 16 ways, for example, as 31411417858921 + 23125403796544 = 5604589^2 + 4808888^2 .

It is not a de Polignac number, because 54536821655465 - 2¹⁸ = 54536821393321 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15712346 + ... + 18866675.

It is an arithmetic number, because the mean of its divisors is an integer number (2159027686125).

Almost surely, 2^{54536821655465} is an apocalyptic number.

It is an amenable number.

54536821655465 is a deficient number, since it is larger than the sum of its proper divisors (14552064300535).

54536821655465 is a wasteful number, since it uses less digits than its factorization.

54536821655465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34579277.

The product of its digits is 518400000, while the sum is 65.

The spelling of 54536821655465 in words is "fifty-four trillion, five hundred thirty-six billion, eight hundred twenty-one million, six hundred fifty-five thousand, four hundred sixty-five".