42005253660 has 48 divisors (see below), whose sum is σ = 117633094656. Its totient is φ = 11199650112.

The previous prime is 42005253659. The next prime is 42005253749. The reversal of 42005253660 is 6635250024.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 358077 + ... + 460683.

It is an arithmetic number, because the mean of its divisors is an integer number (2450689472).

Almost surely, 2^42005253660 is an apocalyptic number.

It is an amenable number.

42005253660 is an abundant number, since it is smaller than the sum of its proper divisors (75627840996).

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

42005253660 is a wasteful number, since it uses less digits than its factorization.

42005253660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109442 (or 109440 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 33.

The spelling of 42005253660 in words is "forty-two billion, five million, two hundred fifty-three thousand, six hundred sixty".