1603671740325 has 72 divisors (see below), whose sum is σ = 3000951944640. Its totient is φ = 817091616000.

The previous prime is 1603671740221. The next prime is 1603671740347. The reversal of 1603671740325 is 5230471763061.

1603671740325 is a `hidden beast` number, since 1 + 603 + 6 + 7 + 1 + 7 + 4 + 0 + 32 + 5 = 666.

It is not a de Polignac number, because 1603671740325 - 2²² = 1603667546021 is a prime.

It is a super-2 number, since 2×1603671740325² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 3995050 + ... + 4378100.

It is an arithmetic number, because the mean of its divisors is an integer number (41679888120).

Almost surely, 2^{1603671740325} is an apocalyptic number.

1603671740325 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1603671740325 is a deficient number, since it is larger than the sum of its proper divisors (1397280204315).

1603671740325 is a wasteful number, since it uses less digits than its factorization.

1603671740325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383899 (or 383891 counting only the distinct ones).

The product of its (nonzero) digits is 635040, while the sum is 45.

The spelling of 1603671740325 in words is "one trillion, six hundred three billion, six hundred seventy-one million, seven hundred forty thousand, three hundred twenty-five".