64865226261100 has 36 divisors (see below), whose sum is σ = 148165832621800. Its totient is φ = 24580506792960.

The previous prime is 64865226261083. The next prime is 64865226261113. The reversal of 64865226261100 is 116262256846.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17069794485 + ... + 17069798284.

Almost surely, 2^{64865226261100} is an apocalyptic number.

It is an amenable number.

64865226261100 is an abundant number, since it is smaller than the sum of its proper divisors (83300606360700).

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

64865226261100 is a wasteful number, since it uses less digits than its factorization.

64865226261100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34139592802 (or 34139592795 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 49.

The spelling of 64865226261100 in words is "sixty-four trillion, eight hundred sixty-five billion, two hundred twenty-six million, two hundred sixty-one thousand, one hundred".