64533352402 has 4 divisors (see below), whose sum is σ = 96800028606. Its totient is φ = 32266676200.

The previous prime is 64533352381. The next prime is 64533352409. The reversal of 64533352402 is 20425333546.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 54892272681 + 9641079721 = 234291^2 + 98189^2 .

It is not an unprimeable number, because it can be changed into a prime (64533352409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16133338099 + ... + 16133338102.

Almost surely, 2^64533352402 is an apocalyptic number.

64533352402 is a deficient number, since it is larger than the sum of its proper divisors (32266676204).

64533352402 is a wasteful number, since it uses less digits than its factorization.

64533352402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32266676203.

The product of its (nonzero) digits is 259200, while the sum is 37.

Adding to 64533352402 its reverse (20425333546), we get a palindrome (84958685948).

The spelling of 64533352402 in words is "sixty-four billion, five hundred thirty-three million, three hundred fifty-two thousand, four hundred two".