64256081011 has 8 divisors (see below), whose sum is σ = 65497435920. Its totient is φ = 63015799392.

The previous prime is 64256080991. The next prime is 64256081027. The reversal of 64256081011 is 11018065246.

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

It is a cyclic number.

It is not a de Polignac number, because 64256081011 - 2¹⁵ = 64256048243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64256081311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 146905 + ... + 387418.

It is an arithmetic number, because the mean of its divisors is an integer number (8187179490).

Almost surely, 2^64256081011 is an apocalyptic number.

64256081011 is a deficient number, since it is larger than the sum of its proper divisors (1241354909).

64256081011 is a wasteful number, since it uses less digits than its factorization.

64256081011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 536645.

The product of its (nonzero) digits is 11520, while the sum is 34.

The spelling of 64256081011 in words is "sixty-four billion, two hundred fifty-six million, eighty-one thousand, eleven".