156402220003 has 4 divisors (see below), whose sum is σ = 157266320848. Its totient is φ = 155538119160.

The previous prime is 156402219989. The next prime is 156402220027. The reversal of 156402220003 is 300022204651.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-156402220003 is a prime.

It is a super-3 number, since 3×156402220003³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 156402220003.

It is not an unprimeable number, because it can be changed into a prime (156402220043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 432050151 + ... + 432050512.

It is an arithmetic number, because the mean of its divisors is an integer number (39316580212).

Almost surely, 2^156402220003 is an apocalyptic number.

156402220003 is a deficient number, since it is larger than the sum of its proper divisors (864100845).

156402220003 is an equidigital number, since it uses as much as digits as its factorization.

156402220003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 864100844.

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 156402220003 its reverse (300022204651), we get a palindrome (456424424654).

The spelling of 156402220003 in words is "one hundred fifty-six billion, four hundred two million, two hundred twenty thousand, three".