42166451536 has 40 divisors (see below), whose sum is σ = 91197225504. Its totient is φ = 18720831360.

The previous prime is 42166451527. The next prime is 42166451557. The reversal of 42166451536 is 63515466124.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a junction number, because it is equal to n+sod(n) for n = 42166451492 and 42166451501.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2778271 + ... + 2793406.

Almost surely, 2^42166451536 is an apocalyptic number.

It is an amenable number.

42166451536 is an abundant number, since it is smaller than the sum of its proper divisors (49030773968).

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

42166451536 is a wasteful number, since it uses less digits than its factorization.

42166451536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5571739 (or 5571733 counting only the distinct ones).

The product of its digits is 518400, while the sum is 43.

The spelling of 42166451536 in words is "forty-two billion, one hundred sixty-six million, four hundred fifty-one thousand, five hundred thirty-six".