21470013336355 has 16 divisors (see below), whose sum is σ = 25822619389440. Its totient is φ = 17136950247648.

The previous prime is 21470013336349. The next prime is 21470013336361. The reversal of 21470013336355 is 55363331007412.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (21470013336349) and next prime (21470013336361).

It is a cyclic number.

It is not a de Polignac number, because 21470013336355 - 2¹¹ = 21470013334307 is a prime.

It is a super-2 number, since 2×21470013336355² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19852176 + ... + 20905714.

It is an arithmetic number, because the mean of its divisors is an integer number (1613913711840).

Almost surely, 2^{21470013336355} is an apocalyptic number.

21470013336355 is a deficient number, since it is larger than the sum of its proper divisors (4352606053085).

21470013336355 is a wasteful number, since it uses less digits than its factorization.

21470013336355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1062810.

The product of its (nonzero) digits is 680400, while the sum is 43.

The spelling of 21470013336355 in words is "twenty-one trillion, four hundred seventy billion, thirteen million, three hundred thirty-six thousand, three hundred fifty-five".