145603651566 has 32 divisors (see below), whose sum is σ = 301509374976. Its totient is φ = 46827000000.

The previous prime is 145603651561. The next prime is 145603651573. The reversal of 145603651566 is 665156306541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145603651561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1120935 + ... + 1244066.

It is an arithmetic number, because the mean of its divisors is an integer number (9422167968).

Almost surely, 2^145603651566 is an apocalyptic number.

145603651566 is an abundant number, since it is smaller than the sum of its proper divisors (155905723410).

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

145603651566 is a wasteful number, since it uses less digits than its factorization.

145603651566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2365368.

The product of its (nonzero) digits is 1944000, while the sum is 48.

The spelling of 145603651566 in words is "one hundred forty-five billion, six hundred three million, six hundred fifty-one thousand, five hundred sixty-six".