65504958500072 has 64 divisors (see below), whose sum is σ = 151409498755200. Its totient is φ = 25872184961280.

The previous prime is 65504958500017. The next prime is 65504958500081. The reversal of 65504958500072 is 27000585940556.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is a junction number, because it is equal to n+sod(n) for n = 65504958499990 and 65504958500017.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72230579 + ... + 73131842.

It is an arithmetic number, because the mean of its divisors is an integer number (2365773418050).

Almost surely, 2^{65504958500072} is an apocalyptic number.

It is an amenable number.

65504958500072 is an abundant number, since it is smaller than the sum of its proper divisors (85904540255128).

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

65504958500072 is a wasteful number, since it uses less digits than its factorization.

65504958500072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145363066 (or 145363062 counting only the distinct ones).

The product of its (nonzero) digits is 15120000, while the sum is 56.

The spelling of 65504958500072 in words is "sixty-five trillion, five hundred four billion, nine hundred fifty-eight million, five hundred thousand, seventy-two".