144167772061 has 2 divisors, whose sum is σ = 144167772062. Its totient is φ = 144167772060.

The previous prime is 144167772041. The next prime is 144167772097. The reversal of 144167772061 is 160277761441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 111873525625 + 32294246436 = 334475^2 + 179706^2 .

It is a cyclic number.

It is not a de Polignac number, because 144167772061 - 2¹³ = 144167763869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144167772041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72083886030 + 72083886031.

It is an arithmetic number, because the mean of its divisors is an integer number (72083886031).

Almost surely, 2^144167772061 is an apocalyptic number.

It is an amenable number.

144167772061 is a deficient number, since it is larger than the sum of its proper divisors (1).

144167772061 is an equidigital number, since it uses as much as digits as its factorization.

144167772061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 395136, while the sum is 46.

The spelling of 144167772061 in words is "one hundred forty-four billion, one hundred sixty-seven million, seven hundred seventy-two thousand, sixty-one".