216968150 has 24 divisors (see below), whose sum is σ = 461213040. Its totient is φ = 74388960.

The previous prime is 216968113. The next prime is 216968179. The reversal of 216968150 is 51869612.

It is a super-2 number, since 2×216968150² = 94150356228845000, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 309605 + ... + 310304.

It is an arithmetic number, because the mean of its divisors is an integer number (19217210).

Almost surely, 2^216968150 is an apocalyptic number.

216968150 is an abundant number, since it is smaller than the sum of its proper divisors (244244890).

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

216968150 is a wasteful number, since it uses less digits than its factorization.

216968150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 619928 (or 619923 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 38.

The square root of 216968150 is about 14729.8387635439. The cubic root of 216968150 is about 600.8950991836.

The spelling of 216968150 in words is "two hundred sixteen million, nine hundred sixty-eight thousand, one hundred fifty".