145525446665320 has 32 divisors (see below), whose sum is σ = 327432607062120. Its totient is φ = 58210116076800.

The previous prime is 145525446665303. The next prime is 145525446665327. The reversal of 145525446665320 is 23566644525541.

It can be written as a sum of positive squares in 4 ways, for example, as 77529821230404 + 67995625434916 = 8805102^2 + 8245946^2 .

It is not an unprimeable number, because it can be changed into a prime (145525446665327) 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, 59722870 + ... + 62111770.

Almost surely, 2^{145525446665320} is an apocalyptic number.

145525446665320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145525446665320 is an abundant number, since it is smaller than the sum of its proper divisors (181907160396800).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145525446665320 is a wasteful number, since it uses less digits than its factorization.

145525446665320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3911845 (or 3911841 counting only the distinct ones).

The product of its (nonzero) digits is 103680000, while the sum is 58.

The spelling of 145525446665320 in words is "one hundred forty-five trillion, five hundred twenty-five billion, four hundred forty-six million, six hundred sixty-five thousand, three hundred twenty".