156253216020 has 48 divisors (see below), whose sum is σ = 477282552768. Its totient is φ = 37879567360.

The previous prime is 156253215997. The next prime is 156253216087. The reversal of 156253216020 is 20612352651.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 118372989 + ... + 118374308.

It is an arithmetic number, because the mean of its divisors is an integer number (9943386516).

Almost surely, 2^156253216020 is an apocalyptic number.

156253216020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

156253216020 is an abundant number, since it is smaller than the sum of its proper divisors (321029336748).

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

156253216020 is a wasteful number, since it uses less digits than its factorization.

156253216020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236747320 (or 236747318 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 33.

Adding to 156253216020 its reverse (20612352651), we get a palindrome (176865568671).

It can be divided in two parts, 156253 and 216020, that added together give a palindrome (372273).

The spelling of 156253216020 in words is "one hundred fifty-six billion, two hundred fifty-three million, two hundred sixteen thousand, twenty".