85840326660121 has 16 divisors (see below), whose sum is σ = 93762745267968. Its totient is φ = 77937723705600.

The previous prime is 85840326660107. The next prime is 85840326660223. The reversal of 85840326660121 is 12106662304858.

It is a de Polignac number, because none of the positive numbers 2^k-85840326660121 is a prime.

It is a super-2 number, since 2×85840326660121² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85840326660421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72805120 + ... + 73974766.

It is an arithmetic number, because the mean of its divisors is an integer number (5860171579248).

Almost surely, 2^{85840326660121} is an apocalyptic number.

It is an amenable number.

85840326660121 is a deficient number, since it is larger than the sum of its proper divisors (7922418607847).

85840326660121 is a wasteful number, since it uses less digits than its factorization.

85840326660121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1178112.

The product of its (nonzero) digits is 3317760, while the sum is 52.

Adding to 85840326660121 its reverse (12106662304858), we get a palindrome (97946988964979).

The spelling of 85840326660121 in words is "eighty-five trillion, eight hundred forty billion, three hundred twenty-six million, six hundred sixty thousand, one hundred twenty-one".