84165547090 has 8 divisors (see below), whose sum is σ = 151497984780. Its totient is φ = 33666218832.

The previous prime is 84165547033. The next prime is 84165547117. The reversal of 84165547090 is 9074556148.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 76566763849 + 7598783241 = 276707^2 + 87171^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4208277345 + ... + 4208277364.

Almost surely, 2^84165547090 is an apocalyptic number.

84165547090 is a deficient number, since it is larger than the sum of its proper divisors (67332437690).

84165547090 is a wasteful number, since it uses less digits than its factorization.

84165547090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8416554716.

The product of its (nonzero) digits is 1209600, while the sum is 49.

The spelling of 84165547090 in words is "eighty-four billion, one hundred sixty-five million, five hundred forty-seven thousand, ninety".