834166081620 has 96 divisors (see below), whose sum is σ = 2731771996800. Its totient is φ = 210736691712.

The previous prime is 834166081583. The next prime is 834166081627. The reversal of 834166081620 is 26180661438.

834166081620 is a `hidden beast` number, since 8 + 3 + 4 + 1 + 6 + 608 + 16 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (834166081627) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40641109 + ... + 40661628.

It is an arithmetic number, because the mean of its divisors is an integer number (28455958300).

Almost surely, 2^834166081620 is an apocalyptic number.

It is an amenable number.

834166081620 is an abundant number, since it is smaller than the sum of its proper divisors (1897605915180).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

834166081620 is a wasteful number, since it uses less digits than its factorization.

834166081620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81302774 (or 81302766 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 45.

The spelling of 834166081620 in words is "eight hundred thirty-four billion, one hundred sixty-six million, eighty-one thousand, six hundred twenty".