64420460102 has 4 divisors (see below), whose sum is σ = 96630690156. Its totient is φ = 32210230050.

The previous prime is 64420460081. The next prime is 64420460123. The reversal of 64420460102 is 20106402446.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (64420460081) and next prime (64420460123).

It is a super-3 number, since 3×64420460102³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16105115024 + ... + 16105115027.

It is an arithmetic number, because the mean of its divisors is an integer number (24157672539).

Almost surely, 2^64420460102 is an apocalyptic number.

64420460102 is a deficient number, since it is larger than the sum of its proper divisors (32210230054).

64420460102 is a wasteful number, since it uses less digits than its factorization.

64420460102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32210230053.

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 64420460102 its reverse (20106402446), we get a palindrome (84526862548).

The spelling of 64420460102 in words is "sixty-four billion, four hundred twenty million, four hundred sixty thousand, one hundred two".