42166463620 has 24 divisors (see below), whose sum is σ = 88554504024. Its totient is φ = 16865646336.

The previous prime is 42166463579. The next prime is 42166463671. The reversal of 42166463620 is 2636466124.

It can be written as a sum of positive squares in 4 ways, for example, as 95531076 + 42070932544 = 9774^2 + 205112^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 395032 + ... + 490288.

It is an arithmetic number, because the mean of its divisors is an integer number (3689771001).

Almost surely, 2^42166463620 is an apocalyptic number.

It is an amenable number.

42166463620 is an abundant number, since it is smaller than the sum of its proper divisors (46388040404).

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

42166463620 is a wasteful number, since it uses less digits than its factorization.

42166463620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117399 (or 117397 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 40.

The spelling of 42166463620 in words is "forty-two billion, one hundred sixty-six million, four hundred sixty-three thousand, six hundred twenty".