145372520206 has 32 divisors (see below), whose sum is σ = 244108546560. Its totient is φ = 64524468096.

The previous prime is 145372520197. The next prime is 145372520207. The reversal of 145372520206 is 602025273541.

It is a super-2 number, since 2×145372520206² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145372520207) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 349030 + ... + 642313.

It is an arithmetic number, because the mean of its divisors is an integer number (7628392080).

Almost surely, 2^145372520206 is an apocalyptic number.

145372520206 is a deficient number, since it is larger than the sum of its proper divisors (98736026354).

145372520206 is a wasteful number, since it uses less digits than its factorization.

145372520206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 991608.

The product of its (nonzero) digits is 100800, while the sum is 37.

Adding to 145372520206 its reverse (602025273541), we get a palindrome (747397793747).

The spelling of 145372520206 in words is "one hundred forty-five billion, three hundred seventy-two million, five hundred twenty thousand, two hundred six".