1605402433340 has 48 divisors (see below), whose sum is σ = 3409663692960. Its totient is φ = 634890547200.

The previous prime is 1605402433337. The next prime is 1605402433357. The reversal of 1605402433340 is 433342045061.

It is a self number, because there is not a number n which added to its sum of digits gives 1605402433340.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20531 + ... + 1791989.

It is an arithmetic number, because the mean of its divisors is an integer number (71034660270).

Almost surely, 2^{1605402433340} is an apocalyptic number.

1605402433340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1605402433340 is an abundant number, since it is smaller than the sum of its proper divisors (1804261259620).

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

1605402433340 is a wasteful number, since it uses less digits than its factorization.

1605402433340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1771982 (or 1771980 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 35.

The spelling of 1605402433340 in words is "one trillion, six hundred five billion, four hundred two million, four hundred thirty-three thousand, three hundred forty".