145820722072 has 32 divisors (see below), whose sum is σ = 273868948800. Its totient is φ = 72789089184.

The previous prime is 145820722063. The next prime is 145820722141. The reversal of 145820722072 is 270227028541.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21558163 + ... + 21564925.

It is an arithmetic number, because the mean of its divisors is an integer number (8558404650).

Almost surely, 2^145820722072 is an apocalyptic number.

It is an amenable number.

145820722072 is a deficient number, since it is larger than the sum of its proper divisors (128048226728).

145820722072 is a wasteful number, since it uses less digits than its factorization.

145820722072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10855 (or 10851 counting only the distinct ones).

The product of its (nonzero) digits is 125440, while the sum is 40.

The spelling of 145820722072 in words is "one hundred forty-five billion, eight hundred twenty million, seven hundred twenty-two thousand, seventy-two".