21380153295 has 16 divisors (see below), whose sum is σ = 34211876832. Its totient is φ = 11401537920.

The previous prime is 21380153279. The next prime is 21380153299. The reversal of 21380153295 is 59235108312.

It is not a de Polignac number, because 21380153295 - 2⁴ = 21380153279 is a prime.

It is a super-2 number, since 2×21380153295² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21380153299) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80785 + ... + 222005.

It is an arithmetic number, because the mean of its divisors is an integer number (2138242302).

Almost surely, 2^21380153295 is an apocalyptic number.

21380153295 is a deficient number, since it is larger than the sum of its proper divisors (12831723537).

21380153295 is a wasteful number, since it uses less digits than its factorization.

21380153295 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151322.

The product of its (nonzero) digits is 64800, while the sum is 39.

The spelling of 21380153295 in words is "twenty-one billion, three hundred eighty million, one hundred fifty-three thousand, two hundred ninety-five".