64107667261 has 16 divisors (see below), whose sum is σ = 71818444800. Its totient is φ = 56731474800.

The previous prime is 64107667223. The next prime is 64107667271. The reversal of 64107667261 is 16276670146.

It is not a de Polignac number, because 64107667261 - 2¹¹ = 64107665213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64107667271) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 457821 + ... + 581218.

It is an arithmetic number, because the mean of its divisors is an integer number (4488652800).

Almost surely, 2^64107667261 is an apocalyptic number.

It is an amenable number.

64107667261 is a deficient number, since it is larger than the sum of its proper divisors (7710777539).

64107667261 is a wasteful number, since it uses less digits than its factorization.

64107667261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1039200.

The product of its (nonzero) digits is 508032, while the sum is 46.

The spelling of 64107667261 in words is "sixty-four billion, one hundred seven million, six hundred sixty-seven thousand, two hundred sixty-one".