42156140406 has 32 divisors (see below), whose sum is σ = 87255843840. Its totient is φ = 13561855776.

The previous prime is 42156140399. The next prime is 42156140413. The reversal of 42156140406 is 60404165124.

It is an interprime number because it is at equal distance from previous prime (42156140399) and next prime (42156140413).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 380155 + ... + 478361.

It is an arithmetic number, because the mean of its divisors is an integer number (2726745120).

Almost surely, 2^42156140406 is an apocalyptic number.

42156140406 is an abundant number, since it is smaller than the sum of its proper divisors (45099703434).

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

42156140406 is a wasteful number, since it uses less digits than its factorization.

42156140406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100708.

The product of its (nonzero) digits is 23040, while the sum is 33.

The spelling of 42156140406 in words is "forty-two billion, one hundred fifty-six million, one hundred forty thousand, four hundred six".