146716440012621 has 12 divisors (see below), whose sum is σ = 211927058153148. Its totient is φ = 97809431638464.

The previous prime is 146716440012613. The next prime is 146716440012661. The reversal of 146716440012621 is 126210044617641.

146716440012621 is a `hidden beast` number, since 1 + 4 + 6 + 7 + 1 + 6 + 4 + 4 + 0 + 0 + 12 + 621 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 128382722972100 + 18333717040521 = 11330610^2 + 4281789^2 .

It is not a de Polignac number, because 146716440012621 - 2³ = 146716440012613 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146716440012601) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 126756040 + ... + 127908273.

It is an arithmetic number, because the mean of its divisors is an integer number (17660588179429).

Almost surely, 2^{146716440012621} is an apocalyptic number.

It is an amenable number.

146716440012621 is a deficient number, since it is larger than the sum of its proper divisors (65210618140527).

146716440012621 is a wasteful number, since it uses less digits than its factorization.

146716440012621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254728332 (or 254728329 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The spelling of 146716440012621 in words is "one hundred forty-six trillion, seven hundred sixteen billion, four hundred forty million, twelve thousand, six hundred twenty-one".