64533354540 has 48 divisors (see below), whose sum is σ = 180719381472. Its totient is φ = 17206419456.

The previous prime is 64533354533. The next prime is 64533354607. The reversal of 64533354540 is 4545333546.

64533354540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×64533354540² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 64533354492 and 64533354501.

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, 364122 + ... + 511518.

It is an arithmetic number, because the mean of its divisors is an integer number (3764987114).

Almost surely, 2^64533354540 is an apocalyptic number.

64533354540 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

64533354540 is an abundant number, since it is smaller than the sum of its proper divisors (116186026932).

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

64533354540 is a wasteful number, since it uses less digits than its factorization.

64533354540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154706 (or 154704 counting only the distinct ones).

The product of its (nonzero) digits is 1296000, while the sum is 42.

The spelling of 64533354540 in words is "sixty-four billion, five hundred thirty-three million, three hundred fifty-four thousand, five hundred forty".