21496103575 has 12 divisors (see below), whose sum is σ = 26793284128. Its totient is φ = 17107776000.

The previous prime is 21496103539. The next prime is 21496103581. The reversal of 21496103575 is 57530169412.

It is not a de Polignac number, because 21496103575 - 2¹⁵ = 21496070807 is a prime.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2222751 + ... + 2232400.

Almost surely, 2^21496103575 is an apocalyptic number.

21496103575 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

21496103575 is a deficient number, since it is larger than the sum of its proper divisors (5297180553).

21496103575 is a wasteful number, since it uses less digits than its factorization.

21496103575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4455354 (or 4455349 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 43.

The spelling of 21496103575 in words is "twenty-one billion, four hundred ninety-six million, one hundred three thousand, five hundred seventy-five".