84005522001 has 12 divisors (see below), whose sum is σ = 121422820740. Its totient is φ = 55966060800.

The previous prime is 84005521979. The next prime is 84005522039. The reversal of 84005522001 is 10022550048.

It is a happy number.

84005522001 is a `hidden beast` number, since 8 + 400 + 5 + 52 + 200 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 17143974225 + 66861547776 = 130935^2 + 258576^2 .

It is not a de Polignac number, because 84005522001 - 2¹⁷ = 84005390929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (84005522201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3120900 + ... + 3147701.

It is an arithmetic number, because the mean of its divisors is an integer number (10118568395).

Almost surely, 2^84005522001 is an apocalyptic number.

It is an amenable number.

84005522001 is a deficient number, since it is larger than the sum of its proper divisors (37417298739).

84005522001 is a wasteful number, since it uses less digits than its factorization.

84005522001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6270096 (or 6270093 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

The spelling of 84005522001 in words is "eighty-four billion, five million, five hundred twenty-two thousand, one".