65040616254 has 32 divisors (see below), whose sum is σ = 133745794560. Its totient is φ = 21073348800.

The previous prime is 65040616231. The next prime is 65040616273. The reversal of 65040616254 is 45261604056.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 421144 + ... + 554475.

It is an arithmetic number, because the mean of its divisors is an integer number (4179556080).

Almost surely, 2^65040616254 is an apocalyptic number.

65040616254 is an abundant number, since it is smaller than the sum of its proper divisors (68705178306).

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

65040616254 is a wasteful number, since it uses less digits than its factorization.

65040616254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 975936.

The product of its (nonzero) digits is 172800, while the sum is 39.

The spelling of 65040616254 in words is "sixty-five billion, forty million, six hundred sixteen thousand, two hundred fifty-four".