215532411403401 has 48 divisors (see below), whose sum is σ = 313398491627520. Its totient is φ = 142732592997120.

The previous prime is 215532411403357. The next prime is 215532411403427. The reversal of 215532411403401 is 104304114235512.

215532411403401 is a `hidden beast` number, since 2 + 1 + 5 + 5 + 3 + 241 + 1 + 4 + 0 + 3 + 401 = 666.

It is not a de Polignac number, because 215532411403401 - 2³⁴ = 215515231534217 is a prime.

It is not an unprimeable number, because it can be changed into a prime (215532411405401) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 14032963960 + ... + 14032979318.

It is an arithmetic number, because the mean of its divisors is an integer number (6529135242240).

Almost surely, 2^{215532411403401} is an apocalyptic number.

It is an amenable number.

215532411403401 is a deficient number, since it is larger than the sum of its proper divisors (97866080224119).

215532411403401 is a wasteful number, since it uses less digits than its factorization.

215532411403401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22846 (or 22843 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

Adding to 215532411403401 its reverse (104304114235512), we get a palindrome (319836525638913).

The spelling of 215532411403401 in words is "two hundred fifteen trillion, five hundred thirty-two billion, four hundred eleven million, four hundred three thousand, four hundred one".