215542406050116 has 12 divisors (see below), whose sum is σ = 502932280783632. Its totient is φ = 71847468683368.

The previous prime is 215542406050093. The next prime is 215542406050157. The reversal of 215542406050116 is 611050604245512.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×215542406050116² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8980933585410 + ... + 8980933585433.

It is an arithmetic number, because the mean of its divisors is an integer number (41911023398636).

Almost surely, 2^{215542406050116} is an apocalyptic number.

It is an amenable number.

215542406050116 is an abundant number, since it is smaller than the sum of its proper divisors (287389874733516).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

215542406050116 is a wasteful number, since it uses less digits than its factorization.

215542406050116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17961867170850 (or 17961867170848 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 42.

The spelling of 215542406050116 in words is "two hundred fifteen trillion, five hundred forty-two billion, four hundred six million, fifty thousand, one hundred sixteen".