145566261522 has 48 divisors (see below), whose sum is σ = 364304876832. Its totient is φ = 41516223360.

The previous prime is 145566261517. The next prime is 145566261551. The reversal of 145566261522 is 225162665541.

145566261522 is a `hidden beast` number, since 1 + 4 + 5 + 5 + 6 + 6 + 2 + 615 + 22 = 666.

145566261522 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21619668 + ... + 21626399.

It is an arithmetic number, because the mean of its divisors is an integer number (7589684934).

Almost surely, 2^145566261522 is an apocalyptic number.

145566261522 is an abundant number, since it is smaller than the sum of its proper divisors (218738615310).

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

145566261522 is a wasteful number, since it uses less digits than its factorization.

145566261522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43246103 (or 43246100 counting only the distinct ones).

The product of its digits is 864000, while the sum is 45.

The spelling of 145566261522 in words is "one hundred forty-five billion, five hundred sixty-six million, two hundred sixty-one thousand, five hundred twenty-two".