2061645488604 has 36 divisors (see below), whose sum is σ = 5612257164696. Its totient is φ = 634352457888.

The previous prime is 2061645488521. The next prime is 2061645488621. The reversal of 2061645488604 is 4068845461602.

2061645488604 is a `hidden beast` number, since 2 + 0 + 6 + 16 + 4 + 548 + 86 + 0 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2202612234 + ... + 2202613169.

Almost surely, 2^{2061645488604} is an apocalyptic number.

It is an amenable number.

2061645488604 is an abundant number, since it is smaller than the sum of its proper divisors (3550611676092).

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

2061645488604 is a wasteful number, since it uses less digits than its factorization.

2061645488604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4405225426 (or 4405225421 counting only the distinct ones).

The product of its (nonzero) digits is 8847360, while the sum is 54.

The spelling of 2061645488604 in words is "two trillion, sixty-one billion, six hundred forty-five million, four hundred eighty-eight thousand, six hundred four".