1395603601632 has 144 divisors (see below), whose sum is σ = 3987398823408. Its totient is φ = 463019120640.

The previous prime is 1395603601627. The next prime is 1395603601643. The reversal of 1395603601632 is 2361063065931.

1395603601632 is a `hidden beast` number, since 1 + 3 + 9 + 5 + 6 + 0 + 3 + 6 + 0 + 1 + 632 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 68425228 + ... + 68445620.

It is an arithmetic number, because the mean of its divisors is an integer number (27690269607).

Almost surely, 2^{1395603601632} is an apocalyptic number.

1395603601632 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1395603601632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1993699411704).

1395603601632 is an abundant number, since it is smaller than the sum of its proper divisors (2591795221776).

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

1395603601632 is a wasteful number, since it uses less digits than its factorization.

1395603601632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21513 (or 21502 counting only the distinct ones).

The product of its (nonzero) digits is 524880, while the sum is 45.

The spelling of 1395603601632 in words is "one trillion, three hundred ninety-five billion, six hundred three million, six hundred one thousand, six hundred thirty-two".