216514577480754 has 96 divisors (see below), whose sum is σ = 509874974562240. Its totient is φ = 61106619345408.

The previous prime is 216514577480753. The next prime is 216514577480801. The reversal of 216514577480754 is 457084775415612.

It is a happy number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (216514577480753) 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, 159229302 + ... + 160583310.

It is an arithmetic number, because the mean of its divisors is an integer number (5311197651690).

Almost surely, 2^{216514577480754} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 216514577480754, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (254937487281120).

216514577480754 is an abundant number, since it is smaller than the sum of its proper divisors (293360397081486).

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

216514577480754 is a wasteful number, since it uses less digits than its factorization.

216514577480754 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1360664 (or 1360657 counting only the distinct ones).

The product of its (nonzero) digits is 263424000, while the sum is 66.

The spelling of 216514577480754 in words is "two hundred sixteen trillion, five hundred fourteen billion, five hundred seventy-seven million, four hundred eighty thousand, seven hundred fifty-four".