21980369503232 has 352 divisors, whose sum is σ = 52012481740800. Its totient is φ = 9090704867328.

The previous prime is 21980369503229. The next prime is 21980369503237. The reversal of 21980369503232 is 23230596308912.

It is a super-2 number, since 2×21980369503232² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21980369503237) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5209850819 + ... + 5209855037.

Almost surely, 2^{21980369503232} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21980369503232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26006240870400).

21980369503232 is an abundant number, since it is smaller than the sum of its proper divisors (30032112237568).

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

21980369503232 is a wasteful number, since it uses less digits than its factorization.

21980369503232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4529 (or 4511 counting only the distinct ones).

The product of its (nonzero) digits is 4199040, while the sum is 53.

The spelling of 21980369503232 in words is "twenty-one trillion, nine hundred eighty billion, three hundred sixty-nine million, five hundred three thousand, two hundred thirty-two".