1601246068640 has 24 divisors (see below), whose sum is σ = 3782943837540. Its totient is φ = 640498427392.

The previous prime is 1601246068627. The next prime is 1601246068657. The reversal of 1601246068640 is 468606421061.

It can be written as a sum of positive squares in 2 ways, for example, as 1423124930704 + 178121137936 = 1192948^2 + 422044^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1601246068591 and 1601246068600.

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, 5003893805 + ... + 5003894124.

Almost surely, 2^{1601246068640} is an apocalyptic number.

1601246068640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1601246068640 is an abundant number, since it is smaller than the sum of its proper divisors (2181697768900).

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

1601246068640 is a wasteful number, since it uses less digits than its factorization.

1601246068640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10007787944 (or 10007787936 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 44.

The spelling of 1601246068640 in words is "one trillion, six hundred one billion, two hundred forty-six million, sixty-eight thousand, six hundred forty".