64129360226 has 4 divisors (see below), whose sum is σ = 96194040342. Its totient is φ = 32064680112.

The previous prime is 64129360213. The next prime is 64129360241. The reversal of 64129360226 is 62206392146.

64129360226 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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., 50205124225 + 13924236001 = 224065^2 + 118001^2 .

It is a super-2 number, since 2×64129360226² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16032340055 + ... + 16032340058.

Almost surely, 2^64129360226 is an apocalyptic number.

64129360226 is a deficient number, since it is larger than the sum of its proper divisors (32064680116).

64129360226 is a wasteful number, since it uses less digits than its factorization.

64129360226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32064680115.

The product of its (nonzero) digits is 186624, while the sum is 41.

The spelling of 64129360226 in words is "sixty-four billion, one hundred twenty-nine million, three hundred sixty thousand, two hundred twenty-six".