156154718338 has 4 divisors (see below), whose sum is σ = 234232077510. Its totient is φ = 78077359168.

The previous prime is 156154718243. The next prime is 156154718351. The reversal of 156154718338 is 833817451651.

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

It can be written as a sum of positive squares in only one way, i.e., 92974376889 + 63180341449 = 304917^2 + 251357^2 .

It is a super-2 number, since 2×156154718338² (a number of 23 digits) contains 22 as substring.

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 as a sum of consecutive naturals, namely, 39038679583 + ... + 39038679586.

Almost surely, 2^156154718338 is an apocalyptic number.

156154718338 is a deficient number, since it is larger than the sum of its proper divisors (78077359172).

156154718338 is an equidigital number, since it uses as much as digits as its factorization.

156154718338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78077359171.

The product of its digits is 2419200, while the sum is 52.

The spelling of 156154718338 in words is "one hundred fifty-six billion, one hundred fifty-four million, seven hundred eighteen thousand, three hundred thirty-eight".