146022721981951 has 8 divisors (see below), whose sum is σ = 148257215293824. Its totient is φ = 143799542560920.

The previous prime is 146022721981901. The next prime is 146022721982009. The reversal of 146022721981951 is 159189127220641.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 146022721981951 - 2¹³ = 146022721973759 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146022721981901) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2828446701 + ... + 2828498326.

It is an arithmetic number, because the mean of its divisors is an integer number (18532151911728).

Almost surely, 2^{146022721981951} is an apocalyptic number.

146022721981951 is a deficient number, since it is larger than the sum of its proper divisors (2234493311873).

146022721981951 is an equidigital number, since it uses as much as digits as its factorization.

146022721981951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5656945421.

The product of its (nonzero) digits is 4354560, while the sum is 58.

The spelling of 146022721981951 in words is "one hundred forty-six trillion, twenty-two billion, seven hundred twenty-one million, nine hundred eighty-one thousand, nine hundred fifty-one".