146116397621 has 8 divisors (see below), whose sum is σ = 154715108184. Its totient is φ = 137518090240.

The previous prime is 146116397593. The next prime is 146116397627. The reversal of 146116397621 is 126793611641.

It can be written as a sum of positive squares in 4 ways, for example, as 26459902225 + 119656495396 = 162665^2 + 345914^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-146116397621 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 (146116397627) 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, 971141 + ... + 1111461.

It is an arithmetic number, because the mean of its divisors is an integer number (19339388523).

Almost surely, 2^146116397621 is an apocalyptic number.

It is an amenable number.

146116397621 is a deficient number, since it is larger than the sum of its proper divisors (8598710563).

146116397621 is a wasteful number, since it uses less digits than its factorization.

146116397621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201591.

The product of its digits is 326592, while the sum is 47.

The spelling of 146116397621 in words is "one hundred forty-six billion, one hundred sixteen million, three hundred ninety-seven thousand, six hundred twenty-one".