64121341603 has 32 divisors (see below), whose sum is σ = 71255808000. Its totient is φ = 57694697280.

The previous prime is 64121341567. The next prime is 64121341631. The reversal of 64121341603 is 30614312146.

It is a happy number.

It is not a de Polignac number, because 64121341603 - 2¹³ = 64121333411 is a prime.

It is a super-2 number, since 2×64121341603² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64121341633) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 61713958 + ... + 61714996.

It is an arithmetic number, because the mean of its divisors is an integer number (2226744000).

Almost surely, 2^64121341603 is an apocalyptic number.

64121341603 is a deficient number, since it is larger than the sum of its proper divisors (7134466397).

64121341603 is a wasteful number, since it uses less digits than its factorization.

64121341603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1504 (or 1482 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 31.

Adding to 64121341603 its reverse (30614312146), we get a palindrome (94735653749).

The spelling of 64121341603 in words is "sixty-four billion, one hundred twenty-one million, three hundred forty-one thousand, six hundred three".