145221165351 has 48 divisors (see below), whose sum is σ = 228254208000. Its totient is φ = 88632480960.

The previous prime is 145221165241. The next prime is 145221165403. The reversal of 145221165351 is 153561122541.

145221165351 is a `hidden beast` number, since 1 + 4 + 5 + 2 + 2 + 116 + 535 + 1 = 666.

It is not a de Polignac number, because 145221165351 - 2¹⁵ = 145221132583 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145221165751) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3739090 + ... + 3777728.

It is an arithmetic number, because the mean of its divisors is an integer number (4755296000).

Almost surely, 2^145221165351 is an apocalyptic number.

145221165351 is a deficient number, since it is larger than the sum of its proper divisors (83033042649).

145221165351 is a wasteful number, since it uses less digits than its factorization.

145221165351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39404 (or 39401 counting only the distinct ones).

The product of its digits is 36000, while the sum is 36.

Adding to 145221165351 its reverse (153561122541), we get a palindrome (298782287892).

The spelling of 145221165351 in words is "one hundred forty-five billion, two hundred twenty-one million, one hundred sixty-five thousand, three hundred fifty-one".