156321653242 has 8 divisors (see below), whose sum is σ = 234484207776. Its totient is φ = 78160250652.

The previous prime is 156321653219. The next prime is 156321653263. The reversal of 156321653242 is 242356123651.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×156321653242² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 156321653195 and 156321653204.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 259233 + ... + 616315.

It is an arithmetic number, because the mean of its divisors is an integer number (29310525972).

Almost surely, 2^156321653242 is an apocalyptic number.

156321653242 is a deficient number, since it is larger than the sum of its proper divisors (78162554534).

156321653242 is a wasteful number, since it uses less digits than its factorization.

156321653242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 575972.

The product of its digits is 259200, while the sum is 40.

Adding to 156321653242 its reverse (242356123651), we get a palindrome (398677776893).

The spelling of 156321653242 in words is "one hundred fifty-six billion, three hundred twenty-one million, six hundred fifty-three thousand, two hundred forty-two".