145340245664 has 12 divisors (see below), whose sum is σ = 286138608714. Its totient is φ = 72670122816.

The previous prime is 145340245663. The next prime is 145340245669. The reversal of 145340245664 is 466542043541.

It can be written as a sum of positive squares in only one way, i.e., 132854418064 + 12485827600 = 364492^2 + 111740^2 .

It is a super-2 number, since 2×145340245664² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145340245663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2270941307 + ... + 2270941370.

Almost surely, 2^145340245664 is an apocalyptic number.

It is an amenable number.

145340245664 is a deficient number, since it is larger than the sum of its proper divisors (140798363050).

145340245664 is an equidigital number, since it uses as much as digits as its factorization.

145340245664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4541882687 (or 4541882679 counting only the distinct ones).

The product of its (nonzero) digits is 1382400, while the sum is 44.

The spelling of 145340245664 in words is "one hundred forty-five billion, three hundred forty million, two hundred forty-five thousand, six hundred sixty-four".