146720713577 has 2 divisors, whose sum is σ = 146720713578. Its totient is φ = 146720713576.

The previous prime is 146720713507. The next prime is 146720713591. The reversal of 146720713577 is 775317027641.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 142207426816 + 4513286761 = 377104^2 + 67181^2 .

It is a cyclic number.

It is not a de Polignac number, because 146720713577 - 2¹⁰ = 146720712553 is a prime.

It is not a weakly prime, because it can be changed into another prime (146720713507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73360356788 + 73360356789.

It is an arithmetic number, because the mean of its divisors is an integer number (73360356789).

Almost surely, 2^146720713577 is an apocalyptic number.

It is an amenable number.

146720713577 is a deficient number, since it is larger than the sum of its proper divisors (1).

146720713577 is an equidigital number, since it uses as much as digits as its factorization.

146720713577 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728720, while the sum is 50.

The spelling of 146720713577 in words is "one hundred forty-six billion, seven hundred twenty million, seven hundred thirteen thousand, five hundred seventy-seven".