722742472167066 has 48 divisors (see below), whose sum is σ = 1686403628156520. Its totient is φ = 222381702236160.

The previous prime is 722742472167061. The next prime is 722742472167109. The reversal of 722742472167066 is 660761274247227.

722742472167066 is a `hidden beast` number, since 7 + 2 + 2 + 7 + 42 + 472 + 1 + 67 + 0 + 66 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 514163742682041 + 208578729485025 = 22675179^2 + 14442255^2 .

It is a junction number, because it is equal to n+sod(n) for n = 722742472166994 and 722742472167012.

It is not an unprimeable number, because it can be changed into a prime (722742472167061) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 87546526 + ... + 95445686.

Almost surely, 2^{722742472167066} is an apocalyptic number.

722742472167066 is an abundant number, since it is smaller than the sum of its proper divisors (963661155989454).

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

722742472167066 is a wasteful number, since it uses less digits than its factorization.

722742472167066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8290191 (or 8290188 counting only the distinct ones).

The product of its (nonzero) digits is 132765696, while the sum is 63.

The spelling of 722742472167066 in words is "seven hundred twenty-two trillion, seven hundred forty-two billion, four hundred seventy-two million, one hundred sixty-seven thousand, sixty-six".