216177503472 has 240 divisors, whose sum is σ = 705636235200. Its totient is φ = 60506984448.

The previous prime is 216177503429. The next prime is 216177503489. The reversal of 216177503472 is 274305771612.

216177503472 is a `hidden beast` number, since 2 + 1 + 6 + 1 + 77 + 503 + 4 + 72 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10954158 + ... + 10973874.

It is an arithmetic number, because the mean of its divisors is an integer number (2940150980).

Almost surely, 2^216177503472 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 216177503472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (352818117600).

216177503472 is an abundant number, since it is smaller than the sum of its proper divisors (489458731728).

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

216177503472 is a wasteful number, since it uses less digits than its factorization.

216177503472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19960 (or 19951 counting only the distinct ones).

The product of its (nonzero) digits is 493920, while the sum is 45.

The spelling of 216177503472 in words is "two hundred sixteen billion, one hundred seventy-seven million, five hundred three thousand, four hundred seventy-two".