156261330342146 has 4 divisors (see below), whose sum is σ = 234391995513222. Its totient is φ = 78130665171072.

The previous prime is 156261330342133. The next prime is 156261330342181. The reversal of 156261330342146 is 641243033162651.

It is a happy number.

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., 108352714566121 + 47908615776025 = 10409261^2 + 6921605^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 156261330342146.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39065332585535 + ... + 39065332585538.

Almost surely, 2^{156261330342146} is an apocalyptic number.

156261330342146 is a deficient number, since it is larger than the sum of its proper divisors (78130665171076).

156261330342146 is an equidigital number, since it uses as much as digits as its factorization.

156261330342146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78130665171075.

The product of its (nonzero) digits is 1866240, while the sum is 47.

The spelling of 156261330342146 in words is "one hundred fifty-six trillion, two hundred sixty-one billion, three hundred thirty million, three hundred forty-two thousand, one hundred forty-six".