1602986655840 has 96 divisors (see below), whose sum is σ = 5051559292416. Its totient is φ = 427280985600.

The previous prime is 1602986655821. The next prime is 1602986655841. The reversal of 1602986655840 is 485566892061.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×1602986655840² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1602986655841) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 418239 + ... + 1838721.

It is an arithmetic number, because the mean of its divisors is an integer number (52620409296).

Almost surely, 2^{1602986655840} is an apocalyptic number.

1602986655840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1602986655840 is an abundant number, since it is smaller than the sum of its proper divisors (3448572636576).

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

1602986655840 is a wasteful number, since it uses less digits than its factorization.

1602986655840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1422852 (or 1422844 counting only the distinct ones).

The product of its (nonzero) digits is 24883200, while the sum is 60.

The spelling of 1602986655840 in words is "one trillion, six hundred two billion, nine hundred eighty-six million, six hundred fifty-five thousand, eight hundred forty".