145065707172 has 72 divisors (see below), whose sum is σ = 372613806656. Its totient is φ = 47580571584.

The previous prime is 145065707153. The next prime is 145065707183. The reversal of 145065707172 is 271707560541.

145065707172 is a `hidden beast` number, since 1 + 4 + 5 + 0 + 6 + 570 + 7 + 1 + 72 = 666.

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, 457563 + ... + 706749.

Almost surely, 2^145065707172 is an apocalyptic number.

145065707172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

145065707172 is an abundant number, since it is smaller than the sum of its proper divisors (227548099484).

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

145065707172 is a wasteful number, since it uses less digits than its factorization.

145065707172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249457 (or 249452 counting only the distinct ones).

The product of its (nonzero) digits is 411600, while the sum is 45.

The spelling of 145065707172 in words is "one hundred forty-five billion, sixty-five million, seven hundred seven thousand, one hundred seventy-two".