145205521622 has 8 divisors (see below), whose sum is σ = 248923751376. Its totient is φ = 62230937832.

The previous prime is 145205521613. The next prime is 145205521639. The reversal of 145205521622 is 226125502541.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5185911473 + ... + 5185911500.

It is an arithmetic number, because the mean of its divisors is an integer number (31115468922).

Almost surely, 2^145205521622 is an apocalyptic number.

145205521622 is a deficient number, since it is larger than the sum of its proper divisors (103718229754).

145205521622 is a wasteful number, since it uses less digits than its factorization.

145205521622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10371822982.

The product of its (nonzero) digits is 48000, while the sum is 35.

The spelling of 145205521622 in words is "one hundred forty-five billion, two hundred five million, five hundred twenty-one thousand, six hundred twenty-two".