84401668215063 has 64 divisors (see below), whose sum is σ = 132891504076800. Its totient is φ = 52831582594560.

The previous prime is 84401668215061. The next prime is 84401668215103. The reversal of 84401668215063 is 36051286610448.

84401668215063 is a `hidden beast` number, since 8 + 4 + 40 + 16 + 6 + 82 + 1 + 506 + 3 = 666.

It is not a de Polignac number, because 84401668215063 - 2¹ = 84401668215061 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84401668215061) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5917231 + ... + 14276447.

It is an arithmetic number, because the mean of its divisors is an integer number (2076429751200).

Almost surely, 2^{84401668215063} is an apocalyptic number.

84401668215063 is a deficient number, since it is larger than the sum of its proper divisors (48489835861737).

84401668215063 is a wasteful number, since it uses less digits than its factorization.

84401668215063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8359549 (or 8359543 counting only the distinct ones).

The product of its (nonzero) digits is 6635520, while the sum is 54.

The spelling of 84401668215063 in words is "eighty-four trillion, four hundred one billion, six hundred sixty-eight million, two hundred fifteen thousand, sixty-three".