42665517240 has 64 divisors (see below), whose sum is σ = 130166006400. Its totient is φ = 11184630912.

The previous prime is 42665517179. The next prime is 42665517263. The reversal of 42665517240 is 4271556624.

It is a super-2 number, since 2×42665517240² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42665517192 and 42665517201.

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, 3006022 + ... + 3020181.

It is an arithmetic number, because the mean of its divisors is an integer number (2033843850).

Almost surely, 2^42665517240 is an apocalyptic number.

42665517240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42665517240 is an abundant number, since it is smaller than the sum of its proper divisors (87500489160).

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

42665517240 is a wasteful number, since it uses less digits than its factorization.

42665517240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6026276 (or 6026272 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 42.

The spelling of 42665517240 in words is "forty-two billion, six hundred sixty-five million, five hundred seventeen thousand, two hundred forty".