84216681146 has 16 divisors (see below), whose sum is σ = 136340035944. Its totient is φ = 38784178944.

The previous prime is 84216681137. The next prime is 84216681179. The reversal of 84216681146 is 64118661248.

It can be written as a sum of positive squares in 4 ways, for example, as 82239900625 + 1976780521 = 286775^2 + 44461^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 84216681146.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3531995 + ... + 3555758.

Almost surely, 2^84216681146 is an apocalyptic number.

84216681146 is a deficient number, since it is larger than the sum of its proper divisors (52123354798).

84216681146 is a wasteful number, since it uses less digits than its factorization.

84216681146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7088225.

The product of its digits is 442368, while the sum is 47.

The spelling of 84216681146 in words is "eighty-four billion, two hundred sixteen million, six hundred eighty-one thousand, one hundred forty-six".