212377016400 has 120 divisors (see below), whose sum is σ = 685280704704. Its totient is φ = 56220441600.

The previous prime is 212377016333. The next prime is 212377016461. The reversal of 212377016400 is 4610773212.

It is a tau number, because it is divible by the number of its divisors (120).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 481516 + ... + 810315.

Almost surely, 2^212377016400 is an apocalyptic number.

212377016400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212377016400 is an abundant number, since it is smaller than the sum of its proper divisors (472903688304).

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

212377016400 is a wasteful number, since it uses less digits than its factorization.

212377016400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1291989 (or 1291978 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 33.

Adding to 212377016400 its reverse (4610773212), we get a palindrome (216987789612).

The spelling of 212377016400 in words is "two hundred twelve billion, three hundred seventy-seven million, sixteen thousand, four hundred".