42156616550 has 48 divisors (see below), whose sum is σ = 79323829200. Its totient is φ = 16667164800.

The previous prime is 42156616511. The next prime is 42156616571. The reversal of 42156616550 is 5561665124.

It is a junction number, because it is equal to n+sod(n) for n = 42156616498 and 42156616507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2274320 + ... + 2292780.

It is an arithmetic number, because the mean of its divisors is an integer number (1652579775).

Almost surely, 2^42156616550 is an apocalyptic number.

42156616550 is a deficient number, since it is larger than the sum of its proper divisors (37167212650).

42156616550 is a wasteful number, since it uses less digits than its factorization.

42156616550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19001 (or 18996 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 41.

The spelling of 42156616550 in words is "forty-two billion, one hundred fifty-six million, six hundred sixteen thousand, five hundred fifty".