215271370481 has 8 divisors (see below), whose sum is σ = 228535809120. Its totient is φ = 202073755968.

The previous prime is 215271370477. The next prime is 215271370493. The reversal of 215271370481 is 184073172512.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 215271370481 - 2² = 215271370477 is a prime.

It is a super-2 number, since 2×215271370481² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (215271370981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16699391 + ... + 16712276.

It is an arithmetic number, because the mean of its divisors is an integer number (28566976140).

Almost surely, 2^215271370481 is an apocalyptic number.

It is an amenable number.

215271370481 is a deficient number, since it is larger than the sum of its proper divisors (13264438639).

215271370481 is a wasteful number, since it uses less digits than its factorization.

215271370481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33412063.

The product of its (nonzero) digits is 94080, while the sum is 41.

The spelling of 215271370481 in words is "two hundred fifteen billion, two hundred seventy-one million, three hundred seventy thousand, four hundred eighty-one".