64106970261 has 8 divisors (see below), whose sum is σ = 85478654784. Its totient is φ = 42736632960.

The previous prime is 64106970259. The next prime is 64106970283. The reversal of 64106970261 is 16207960146.

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

It is not a de Polignac number, because 64106970261 - 2¹ = 64106970259 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64106970661) 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, 219985 + ... + 420246.

It is an arithmetic number, because the mean of its divisors is an integer number (10684831848).

Almost surely, 2^64106970261 is an apocalyptic number.

It is an amenable number.

64106970261 is a deficient number, since it is larger than the sum of its proper divisors (21371684523).

64106970261 is a wasteful number, since it uses less digits than its factorization.

64106970261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 673611.

The product of its (nonzero) digits is 108864, while the sum is 42.

The spelling of 64106970261 in words is "sixty-four billion, one hundred six million, nine hundred seventy thousand, two hundred sixty-one".