1640000413736 has 16 divisors (see below), whose sum is σ = 3079195876500. Its totient is φ = 818881513344.

The previous prime is 1640000413729. The next prime is 1640000413739. The reversal of 1640000413736 is 6373140000461.

It can be written as a sum of positive squares in 2 ways, for example, as 1186944880900 + 453055532836 = 1089470^2 + 673094^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1640000413696 and 1640000413705.

It is not an unprimeable number, because it can be changed into a prime (1640000413739) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139830461 + ... + 139842188.

Almost surely, 2^{1640000413736} is an apocalyptic number.

It is an amenable number.

1640000413736 is a deficient number, since it is larger than the sum of its proper divisors (1439195462764).

1640000413736 is a wasteful number, since it uses less digits than its factorization.

1640000413736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279673388 (or 279673384 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 35.

The spelling of 1640000413736 in words is "one trillion, six hundred forty billion, four hundred thirteen thousand, seven hundred thirty-six".