646077093096 has 128 divisors (see below), whose sum is σ = 1768483082880. Its totient is φ = 195897901056.

The previous prime is 646077093059. The next prime is 646077093173. The reversal of 646077093096 is 690390770646.

It is a super-2 number, since 2×646077093096² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1225840 + ... + 1671776.

It is an arithmetic number, because the mean of its divisors is an integer number (13816274085).

Almost surely, 2^646077093096 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 646077093096, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (884241541440).

646077093096 is an abundant number, since it is smaller than the sum of its proper divisors (1122405989784).

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

646077093096 is a wasteful number, since it uses less digits than its factorization.

646077093096 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446083 (or 446079 counting only the distinct ones).

The product of its (nonzero) digits is 10287648, while the sum is 57.

The spelling of 646077093096 in words is "six hundred forty-six billion, seventy-seven million, ninety-three thousand, ninety-six".