42156022002 has 32 divisors (see below), whose sum is σ = 86631058752. Its totient is φ = 13665858624.

The previous prime is 42156021997. The next prime is 42156022003. The reversal of 42156022002 is 20022065124.

It is a happy number.

42156022002 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (42156022003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 445968 + ... + 532164.

It is an arithmetic number, because the mean of its divisors is an integer number (2707220586).

Almost surely, 2^42156022002 is an apocalyptic number.

42156022002 is an abundant number, since it is smaller than the sum of its proper divisors (44475036750).

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

42156022002 is a wasteful number, since it uses less digits than its factorization.

42156022002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88442.

The product of its (nonzero) digits is 1920, while the sum is 24.

Adding to 42156022002 its reverse (20022065124), we get a palindrome (62178087126).

The spelling of 42156022002 in words is "forty-two billion, one hundred fifty-six million, twenty-two thousand, two".