215640114146461 has 8 divisors (see below), whose sum is σ = 227059243978400. Its totient is φ = 204227949328560.

The previous prime is 215640114146449. The next prime is 215640114146489. The reversal of 215640114146461 is 164641411046512.

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 215640114146461 - 2⁷ = 215640114146333 is a prime.

It is a super-3 number, since 3×215640114146461³ (a number of 44 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215640114146491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1741189950 + ... + 1741313791.

It is an arithmetic number, because the mean of its divisors is an integer number (28382405497300).

Almost surely, 2^{215640114146461} is an apocalyptic number.

It is an amenable number.

215640114146461 is a deficient number, since it is larger than the sum of its proper divisors (11419129831939).

215640114146461 is a wasteful number, since it uses less digits than its factorization.

215640114146461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3482507019.

The product of its (nonzero) digits is 552960, while the sum is 46.

The spelling of 215640114146461 in words is "two hundred fifteen trillion, six hundred forty billion, one hundred fourteen million, one hundred forty-six thousand, four hundred sixty-one".