1602021783564 has 48 divisors (see below), whose sum is σ = 4249980282240. Its totient is φ = 521588486160.

The previous prime is 1602021783559. The next prime is 1602021783569. The reversal of 1602021783564 is 4653871202061.

1602021783564 is a `hidden beast` number, since 1 + 6 + 0 + 2 + 0 + 2 + 1 + 7 + 83 + 564 = 666.

It is an interprime number because it is at equal distance from previous prime (1602021783559) and next prime (1602021783569).

It is not an unprimeable number, because it can be changed into a prime (1602021783569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 172478322 + ... + 172487609.

It is an arithmetic number, because the mean of its divisors is an integer number (88541255880).

Almost surely, 2^{1602021783564} is an apocalyptic number.

It is an amenable number.

1602021783564 is an abundant number, since it is smaller than the sum of its proper divisors (2647958498676).

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

1602021783564 is a wasteful number, since it uses less digits than its factorization.

1602021783564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344965987 (or 344965979 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The spelling of 1602021783564 in words is "one trillion, six hundred two billion, twenty-one million, seven hundred eighty-three thousand, five hundred sixty-four".