1605412604472 has 32 divisors (see below), whose sum is σ = 4020868896000. Its totient is φ = 534159216864.

The previous prime is 1605412604447. The next prime is 1605412604473. The reversal of 1605412604472 is 2744062145061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1605412604473) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61131472 + ... + 61157727.

It is an arithmetic number, because the mean of its divisors is an integer number (125652153000).

Almost surely, 2^{1605412604472} is an apocalyptic number.

1605412604472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1605412604472 is an abundant number, since it is smaller than the sum of its proper divisors (2415456291528).

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

1605412604472 is a wasteful number, since it uses less digits than its factorization.

1605412604472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122289755 (or 122289751 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 42.

The spelling of 1605412604472 in words is "one trillion, six hundred five billion, four hundred twelve million, six hundred four thousand, four hundred seventy-two".