64102516 has 12 divisors (see below), whose sum is σ = 114915780. Its totient is φ = 31269440.

The previous prime is 64102487. The next prime is 64102531. The reversal of 64102516 is 61520146.

It can be written as a sum of positive squares in 2 ways, for example, as 25040016 + 39062500 = 5004^2 + 6250^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 195271 + ... + 195598.

It is an arithmetic number, because the mean of its divisors is an integer number (9576315).

Almost surely, 2^64102516 is an apocalyptic number.

It is an amenable number.

64102516 is a deficient number, since it is larger than the sum of its proper divisors (50813264).

64102516 is a wasteful number, since it uses less digits than its factorization.

64102516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390914 (or 390912 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 64102516 is about 8006.4046862496. The cubic root of 64102516 is about 400.2134610657.

The spelling of 64102516 in words is "sixty-four million, one hundred two thousand, five hundred sixteen".