64533034121 has 4 divisors (see below), whose sum is σ = 64538541312. Its totient is φ = 64527526932.

The previous prime is 64533034103. The next prime is 64533034123. The reversal of 64533034121 is 12143033546.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 64533034121 - 2⁶ = 64533034057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64533034123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2735981 + ... + 2759466.

It is an arithmetic number, because the mean of its divisors is an integer number (16134635328).

Almost surely, 2^64533034121 is an apocalyptic number.

It is an amenable number.

64533034121 is a deficient number, since it is larger than the sum of its proper divisors (5507191).

64533034121 is a wasteful number, since it uses less digits than its factorization.

64533034121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5507190.

The product of its (nonzero) digits is 25920, while the sum is 32.

Adding to 64533034121 its reverse (12143033546), we get a palindrome (76676067667).

The spelling of 64533034121 in words is "sixty-four billion, five hundred thirty-three million, thirty-four thousand, one hundred twenty-one".