156205311042 has 16 divisors (see below), whose sum is σ = 340811587872. Its totient is φ = 47334942720.

The previous prime is 156205311037. The next prime is 156205311043. The reversal of 156205311042 is 240113502651.

It is not an unprimeable number, because it can be changed into a prime (156205311043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1183373503 + ... + 1183373634.

It is an arithmetic number, because the mean of its divisors is an integer number (21300724242).

Almost surely, 2^156205311042 is an apocalyptic number.

156205311042 is an abundant number, since it is smaller than the sum of its proper divisors (184606276830).

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

156205311042 is a wasteful number, since it uses less digits than its factorization.

156205311042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2366747153.

The product of its (nonzero) digits is 7200, while the sum is 30.

Adding to 156205311042 its reverse (240113502651), we get a palindrome (396318813693).

The spelling of 156205311042 in words is "one hundred fifty-six billion, two hundred five million, three hundred eleven thousand, forty-two".