42161541455 has 16 divisors (see below), whose sum is σ = 55291365504. Its totient is φ = 30608453280.

The previous prime is 42161541451. The next prime is 42161541463. The reversal of 42161541455 is 55414516124.

It is not a de Polignac number, because 42161541455 - 2² = 42161541451 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42161541451) 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, 649829 + ... + 711758.

It is an arithmetic number, because the mean of its divisors is an integer number (3455710344).

Almost surely, 2^42161541455 is an apocalyptic number.

42161541455 is a deficient number, since it is larger than the sum of its proper divisors (13129824049).

42161541455 is a wasteful number, since it uses less digits than its factorization.

42161541455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1362166.

The product of its digits is 96000, while the sum is 38.

The spelling of 42161541455 in words is "forty-two billion, one hundred sixty-one million, five hundred forty-one thousand, four hundred fifty-five".