42416251665 has 32 divisors (see below), whose sum is σ = 71546823936. Its totient is φ = 21415342080.

The previous prime is 42416251627. The next prime is 42416251699. The reversal of 42416251665 is 56615261424.

It is not a de Polignac number, because 42416251665 - 2¹² = 42416247569 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 600276 + ... + 667205.

It is an arithmetic number, because the mean of its divisors is an integer number (2235838248).

Almost surely, 2^42416251665 is an apocalyptic number.

It is an amenable number.

42416251665 is a deficient number, since it is larger than the sum of its proper divisors (29130572271).

42416251665 is a wasteful number, since it uses less digits than its factorization.

42416251665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1267609.

The product of its digits is 345600, while the sum is 42.

The spelling of 42416251665 in words is "forty-two billion, four hundred sixteen million, two hundred fifty-one thousand, six hundred sixty-five".