1605412277260 has 36 divisors (see below), whose sum is σ = 3705716113344. Its totient is φ = 583786281760.

The previous prime is 1605412277243. The next prime is 1605412277263. The reversal of 1605412277260 is 627722145061.

It is a super-2 number, since 2×1605412277260² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1605412277263) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 331694332 + ... + 331699171.

It is an arithmetic number, because the mean of its divisors is an integer number (102936558704).

Almost surely, 2^{1605412277260} is an apocalyptic number.

1605412277260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1605412277260 is an abundant number, since it is smaller than the sum of its proper divisors (2100303836084).

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

1605412277260 is a wasteful number, since it uses less digits than its factorization.

1605412277260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 663393534 (or 663393521 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 43.

The spelling of 1605412277260 in words is "one trillion, six hundred five billion, four hundred twelve million, two hundred seventy-seven thousand, two hundred sixty".