64102420146 has 8 divisors (see below), whose sum is σ = 128204840304. Its totient is φ = 21367473380.

The previous prime is 64102420121. The next prime is 64102420147.

It is a happy number.

64102420146 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

64102420146 is an admirable number.

It is a super-2 number, since 2×64102420146² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (64102420147) 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, 5341868340 + ... + 5341868351.

It is an arithmetic number, because the mean of its divisors is an integer number (16025605038).

Almost surely, 2^64102420146 is an apocalyptic number.

64102420146 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

64102420146 is a wasteful number, since it uses less digits than its factorization.

64102420146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10683736696.

The product of its (nonzero) digits is 9216, while the sum is 30.

The spelling of 64102420146 in words is "sixty-four billion, one hundred two million, four hundred twenty thousand, one hundred forty-six".