132603311801621 has 16 divisors (see below), whose sum is σ = 134404917617520. Its totient is φ = 130813531683840.

The previous prime is 132603311801593. The next prime is 132603311801651. The reversal of 132603311801621 is 126108113306231.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 5646868226596 + 126956443575025 = 2376314^2 + 11267495^2 .

It is a cyclic number.

It is not a de Polignac number, because 132603311801621 - 2¹⁴ = 132603311785237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132603311801651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21359591 + ... + 26859611.

It is an arithmetic number, because the mean of its divisors is an integer number (8400307351095).

Almost surely, 2^{132603311801621} is an apocalyptic number.

It is an amenable number.

132603311801621 is a deficient number, since it is larger than the sum of its proper divisors (1801605815899).

132603311801621 is a wasteful number, since it uses less digits than its factorization.

132603311801621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5501096.

The product of its (nonzero) digits is 31104, while the sum is 38.

The spelling of 132603311801621 in words is "one hundred thirty-two trillion, six hundred three billion, three hundred eleven million, eight hundred one thousand, six hundred twenty-one".