21075341196 has 432 divisors, whose sum is σ = 67450279680. Its totient is φ = 5062176000.

The previous prime is 21075341179. The next prime is 21075341197. The reversal of 21075341196 is 69114357012.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (21075341197) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 139571721 + ... + 139571871.

Almost surely, 2^21075341196 is an apocalyptic number.

21075341196 is a gapful number since it is divisible by the number (26) 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 21075341196, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33725139840).

21075341196 is an abundant number, since it is smaller than the sum of its proper divisors (46374938484).

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

21075341196 is a wasteful number, since it uses less digits than its factorization.

21075341196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266 (or 226 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 39.

The spelling of 21075341196 in words is "twenty-one billion, seventy-five million, three hundred forty-one thousand, one hundred ninety-six".