212552349156 has 135 divisors (see below), whose sum is σ = 646549519539. Its totient is φ = 60712645392.

The previous prime is 212552349083. The next prime is 212552349157. The reversal of 212552349156 is 651943255212.

The square root of 212552349156 is 461034.

It is a perfect power (a square), and thus also a powerful number.

212552349156 is a `hidden beast` number, since 2 + 1 + 2 + 552 + 3 + 4 + 91 + 5 + 6 = 666.

It is a super-2 number, since 2×212552349156² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (212552349157) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 58088455 + ... + 58092113.

Almost surely, 2^212552349156 is an apocalyptic number.

212552349156 is the 461034-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212552349156

212552349156 is an abundant number, since it is smaller than the sum of its proper divisors (433997170383).

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

212552349156 is an frugal number, since it uses more digits than its factorization.

212552349156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7348 (or 3671 counting only the distinct ones).

The product of its digits is 648000, while the sum is 45.

The spelling of 212552349156 in words is "two hundred twelve billion, five hundred fifty-two million, three hundred forty-nine thousand, one hundred fifty-six".