70549203321 has 81 divisors (see below), whose sum is σ = 109594286607. Its totient is φ = 43730195040.

The previous prime is 70549203301. The next prime is 70549203323. The reversal of 70549203321 is 12330294507.

The square root of 70549203321 is 265611.

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

70549203321 is a `hidden beast` number, since 70 + 549 + 20 + 3 + 3 + 21 = 666.

It can be written as a sum of positive squares in only one way, i.e., 36994290921 + 33554912400 = 192339^2 + 183180^2 .

It is not a de Polignac number, because 70549203321 - 2²¹ = 70547106169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (70549203323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 993650716 + ... + 993650786.

Almost surely, 2^70549203321 is an apocalyptic number.

70549203321 is a gapful number since it is divisible by the number (71) formed by its first and last digit.

70549203321 is the 265611-st square number.

70549203321 is the 132806-th centered octagonal number.

It is an amenable number.

70549203321 is a deficient number, since it is larger than the sum of its proper divisors (39045083286).

70549203321 is an equidigital number, since it uses as much as digits as its factorization.

70549203321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292 (or 146 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

Multiplying 70549203321 by its sum of digits (36), we get a square (2539771319556 = 1593666²).

Adding to 70549203321 its reverse (12330294507), we get a palindrome (82879497828).

The spelling of 70549203321 in words is "seventy billion, five hundred forty-nine million, two hundred three thousand, three hundred twenty-one".