64571161210842 has 32 divisors (see below), whose sum is σ = 151719651518400. Its totient is φ = 18061863275520.

The previous prime is 64571161210837. The next prime is 64571161210849. The reversal of 64571161210842 is 24801216117546.

It is a junction number, because it is equal to n+sod(n) for n = 64571161210791 and 64571161210800.

It is not an unprimeable number, because it can be changed into a prime (64571161210849) 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, 37628880967 + ... + 37628882682.

It is an arithmetic number, because the mean of its divisors is an integer number (4741239109950).

Almost surely, 2^{64571161210842} is an apocalyptic number.

64571161210842 is an abundant number, since it is smaller than the sum of its proper divisors (87148490307558).

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

64571161210842 is a wasteful number, since it uses less digits than its factorization.

64571161210842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75257763678.

The product of its (nonzero) digits is 645120, while the sum is 48.

The spelling of 64571161210842 in words is "sixty-four trillion, five hundred seventy-one billion, one hundred sixty-one million, two hundred ten thousand, eight hundred forty-two".